Great Marsh Institute

Honey Bee Apiary Tour
2025-05-10 13:00 - 15:00 (America/New_York) | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Join us for a brand new event: Honey Bee Apiary Tour and Honey Tasting, Walk & Talk, Q&A. Master beekeeper, Frank Ruthkosky, is the owner of Exton Bee Company and is the Apiary Inspector for the Pennsylvania Department of Agriculture. Frank has had honey bee hives on our property for the past 3 years. Join us at 1:00 PM for a walking tour of his working bee hives (the walk is about 2 miles round trip with an uphill climb). After the walk (at approximately 2:00 PM) there will be a talk, Q&A, and honey tasting in the Nature Center. Feel free to join for just the walk, talk/tasting, or both!
Please RSVP to lori@greatmarshinstitute.org to attend. This event is free of charge but donations are always welcome via our Paypal, Venmo, or cash donations at the door.

Nature Walk with Diana Cormack
2025-05-10 16:00 - 18:00 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Join Diana Cormack, a PA Master Naturalist, for a nature walk and see what is blooming at the Great Marsh. Wood anemone, jack in the pulpit, spring beauty, wild geraniums, and May apples can all be spotted, as well as trout lily leaves and Canada mayflower that will bloom soon. Please RSVP to lori@greatmarshinstitute.org. This will help us to organize and keep groups small.

Baird Ornithological Society Bird Walk
2025-05-18 08:00 - 11:00 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Come join us at The Great Marsh Institute on Sunday, May 18th at 8:00 AM for our monthly bird walk on collaboration with the Baird Ornithological Society. Please RSVP to lori@greatmarshinstitute.org. This will help us to organize and keep groups small. This event is free but donations are always welcome via our Paypal, Venmo, or cash donations at the door.

Artist Day
2025-05-25 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Calling all photographers, painters, and artists! Sunday, May 25th the Great Marsh will be open dawn to dusk for all interested artists. Take a self-guided tour to paint, take photos, and enjoy the property.
If you are interested in attending, please RSVP to lori@greatmarshinstitute.org with your name and the time you plan to arrive. Check-in will be at the Farm House.
This event is free of charge but we humbly ask for a suggested donation of $20. Donate through our Paypal, Venmo, or make a cash donation at the door

Artist Day
2025-06-21 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Calling all photographers, painters, and artists! Saturday, June 21st the Great Marsh will be open dawn to dusk for all interested artists. Take a self-guided tour to paint, take photos, and enjoy the property.
If you are interested in attending, please RSVP to lori@greatmarshinstitute.org with your name and the time you plan to arrive. Check-in will be at the Farm House.
This event is free of charge but we humbly ask for a suggested donation of $20. Donate through our Paypal, Venmo, or make a cash donation at the door

CANCELLED: Bird Walk
2025-06-29 08:00 - 11:00 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
This month’s bird walk has been cancelled.
Come join us at The Great Marsh Institute on Sunday, June 29th at 8:00 AM for our monthly bird walk. Please RSVP to lori@greatmarshinstitute.org. This will help us to organize and keep groups small. This event is free but donations are always welcome via our Paypal, Venmo, or cash donations at the door.

Artist Day
2025-07-20 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Calling all photographers, painters, and artists! Sunday, July 20th the Great Marsh will be open dawn to dusk for all interested artists. Take a self-guided tour to paint, take photos, and enjoy the property.
If you are interested in attending, please RSVP to lori@greatmarshinstitute.org with your name and the time you plan to arrive. Check-in will be at the Farm House.
This event is free of charge but we humbly ask for a suggested donation of $20. Donate through our Paypal, Venmo, or make a cash donation at the door

Bird Walk
2025-07-27 07:00 - 10:00 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Come join us at The Great Marsh Institute on Sunday, July 27th at 7:00 AM for our monthly bird walk. Please RSVP to lori@greatmarshinstitute.org. This will help us to organize and keep groups small. This event is free but donations are always welcome via our Paypal, Venmo, or cash donations at the door.

Great Marsh Bat and Bug Night
2025-08-16 19:00 - 21:00 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Title: Great Marsh Bat and Bug Night
Date: August 16
Time: 7:00 PM
Description: Get a taste of the night life at the Great Marsh. Insects such as moths and caddisflies wake up when the sun sets. And where there are insects, other critters like bats show up to eat them. We will lure nocturnal insects in to observe and document them while we also keep track of and learn about bats flying above us. Bring a flashlight. Dress for buggy conditions and uneven natural surfaces. Please RSVP to lori@greatmarshinstitute.org. This will help us to organize and keep groups small. This event is free but donations are always welcome.

Artist Day
2025-08-23 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Calling all photographers, painters, and artists! Saturday, August 23rd the Great Marsh will be open dawn to dusk for all interested artists. Take a self-guided tour to paint, take photos, and enjoy the property.
If you are interested in attending, please RSVP to lori@greatmarshinstitute.org with your name and the time you plan to arrive. Check-in will be at the Farm House.
This event is free of charge but we humbly ask for a suggested donation of $20. Donate through our Paypal, Venmo, or make a cash donation at the door

Bird Walk
2025-08-24 08:00 - 11:00 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Come join us at The Great Marsh Institute on Sunday, August 24th at 8:00 AM for our monthly bird walk. Please RSVP to lori@greatmarshinstitute.org. This will help us to organize and keep groups small. This event is free but donations are always welcome via our Paypal, Venmo, or cash donations at the door.

Great Marsh Mud Mosey
2025-09-16 08:00 - 17:00 | PA
Welcome to the First Annual Great Marsh Mud Mosey which feature a 5Kish run throughout a very unique private property in Northern Chester County. The race proceeds will be donated to the Great Marsh Institute and ChesCo Search Dogs.
More event details coming soon!

Artist Day
2025-09-21 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Calling all photographers, painters, and artists! Sunday, September 21st the Great Marsh will be open dawn to dusk for all interested artists. Take a self-guided tour to paint, take photos, and enjoy the property.
If you are interested in attending, please RSVP to lori@greatmarshinstitute.org with your name and the time you plan to arrive. Check-in will be at the Farm House.
This event is free of charge but we humbly ask for a suggested donation of $20. Donate through our Paypal, Venmo, or make a cash donation at the door

Bird Walk
2025-09-21 08:00 - 11:00 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Come join us at The Great Marsh Institute on Sunday, September 21st at 8:00 AM for our monthly bird walk. Please RSVP to lori@greatmarshinstitute.org. This will help us to organize and keep groups small. This event is free but donations are always welcome via our Paypal, Venmo, or cash donations at the door.

Bird Walk
2025-10-12 08:00 - 11:00 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Come join us at The Great Marsh Institute on Sunday, October 12th at 8:00 AM for our monthly bird walk. Please RSVP to lori@greatmarshinstitute.org. This will help us to organize and keep groups small. This event is free but donations are always welcome via our Paypal, Venmo, or cash donations at the door.

Artist Day
2025-10-19 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Calling all photographers, painters, and artists! Sunday, October, 19th the Great Marsh will be open dawn to dusk for all interested artists. Take a self-guided tour to paint, take photos, and enjoy the property.
If you are interested in attending, please RSVP to lori@greatmarshinstitute.org with your name and the time you plan to arrive. Check-in will be at the Farm House.
This event is free of charge but we humbly ask for a suggested donation of $20. Donate through our Paypal, Venmo, or make a cash donation at the door

7th Annual Work Party
2025-11-01 08:00 - 2025-11-02 17:00 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Join us November 1st or 2nd for our 7th annual work party cleaning up the trails around the Great Marsh. Please bring your own tools (clippers, weedwackers, chainsaws and/or hedge trimmers etc) and RSVP for a time slot at: lori@greatmarshinstitute.org
The time slots are as follows:
November 1: 8am-Noon
November 1: Noon-4pm
November 2: 8am-Noon
November 2: Noon-4pm
Thanks for your help in advance.

Bird Walk
2025-11-09 08:00 - 11:00 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Come join us at The Great Marsh Institute on Sunday, November 9th at 8:00 AM for our monthly bird walk. Please RSVP to lori@greatmarshinstitute.org. This will help us to organize and keep groups small. This event is free but donations are always welcome via our Paypal, Venmo, or cash donations at the door.

Artist Day
2025-11-23 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Calling all photographers, painters, and artists! Sunday, November 23rd the Great Marsh will be open dawn to dusk for all interested artists. Take a self-guided tour to paint, take photos, and enjoy the property.
If you are interested in attending, please RSVP to lori@greatmarshinstitute.org with your name and the time you plan to arrive. Check-in will be at the Farm House.
This event is free of charge but we humbly ask for a suggested donation of $20. Donate through our Paypal, Venmo, or make a cash donation at the door

Bird Walk
2025-12-14 08:00 - 11:00 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Come join us at The Great Marsh Institute on Sunday, December 14th at 8:00 AM for our monthly bird walk. Please RSVP to lori@greatmarshinstitute.org. This will help us to organize and keep groups small. This event is free but donations are always welcome via our Paypal, Venmo, or cash donations at the door.

Artist Day
2025-12-20 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Calling all photographers, painters, and artists! Saturday, December 20th the Great Marsh will be open dawn to dusk for all interested artists. Take a self-guided tour to paint, take photos, and enjoy the property.
If you are interested in attending, please RSVP to lori@greatmarshinstitute.org with your name and the time you plan to arrive. Check-in will be at the Farm House.
This event is free of charge but we humbly ask for a suggested donation of $20. Donate through our Paypal, Venmo, or make a cash donation at the door

Artist Day
2026-01-11 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Calling all photographers, painters, and artists! Sunday, January 11th the Great Marsh will be open dawn to dusk for all interested artists (non-artists are welcome too). Take a self-guided tour to paint, take photos, and enjoy the property.
If you are interested in attending, please RSVP to lori@greatmarshinstitute.org with your name and the time you plan to arrive. Check-in will be at the Farm House.
This event is free of charge but we humbly ask for a suggested donation of $20. Donate through our Paypal, Venmo, or make a cash donation at the door

Bird Walk
2026-01-11 08:00 - 11:00 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Come join us at The Great Marsh Institute on Sunday, January 11th at 8:00 AM for our monthly bird walk. Please RSVP to lori@greatmarshinstitute.org. This will help us to organize and keep groups small. This event is free but donations are always welcome via our Paypal, Venmo, or cash donations at the door.

Star Party POSTPONED TO MARCH 13!
2026-02-13 17:30 - 20:30 | PA
Due to weather conditions we are postponing our first Star Party to March 13. We apologize for any inconvenience.
The sky’s the limit on February 13 as we open the GMI observatory to gaze at the stars. Bring your own telescope or see the stars and planets with GMI’s 11″ telescope. We’ll get started at sunset (5:30).
Please RSVP to lori@greatmarshinstitute.org. This will help us to organize and keep groups small, as well as give us a way to contact you in case the weather doesn’t cooperate.
This event is free but donations are always welcome via our Paypal, Venmo, or cash donations at the door.

Artist Day
2026-02-21 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Calling all photographers, painters, and artists! Saturday, February 21st the Great Marsh will be open dawn to dusk for all interested artists (non-artists are welcome too). Take a self-guided tour to paint, take photos, and enjoy the property.
If you are interested in attending, please RSVP to lori@greatmarshinstitute.org with your name and the time you plan to arrive. Check-in will be at the Farm House.
This event is free of charge but we humbly ask for a suggested donation of $20. Donate through our Paypal, Venmo, or make a cash donation at the door

Bird Walk
2026-02-22 08:00 - 11:00 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Come join us at The Great Marsh Institute on Sunday, February 22nd at 8:00 AM for our monthly bird walk. Please RSVP to lori@greatmarshinstitute.org. This will help us to organize and keep groups small. This event is free but donations are always welcome via our Paypal, Venmo, or cash donations at the door.

Woodcock (and Rail) Sit (WAITING LIST)
2026-03-08 18:30 - 20:00 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
RSVPs have exceeded our capacity, so we are placing anyone who RSVPs at this point on a waiting list. Thank you for your interest in the Woodcock Sit; please keep an eye on GMI’s events page for more nature events.
Enjoy an evening to observe one of the highlights of early spring migration. American Woodcock will be showing off their dazzling mating displays at dusk. Oh, and a good possibility of singing Virginia Rails as well!
American Woodcock are known for their elaborate courtship displays. Males will venture out into open areas after sunset and set up a display area. Birds will initially call out with their “peent” calls to announce their presence to other Woodcock. Males will then take flight circling up to 100 meters high with a combination of specialized wings creating a twittering sound as well as vocal chirping. Birds then descend in a rapid circling motion to land in the exact spot they started from. Displays can last as long as 30 minutes.
Please arrive promptly and bring a chair so you can relax and see the show! RSVP to lori@greatmarshinstitute.org to attend. This will enable us to communicate about any weather-related changes and plan for the full number of attendees.
$5 Suggested Donation. Donate through Paypal, Venmo, or make a cash donation at the door.

Star Party (rescheduled)
2026-03-13 17:00 - 21:00 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
The sky’s the limit on March 13 as we open the GMI observatory to gaze at the stars. Bring your own telescope or see the stars and planets with GMI’s 11″ telescope. We’ll get started a little before sunset (6:30).
Please RSVP to lori@greatmarshinstitute.org. This will help us to organize and keep groups small, as well as give us a way to contact you in case the weather doesn’t cooperate.
This event is free but donations are always welcome via our Paypal, Venmo, or cash donations at the door.

Bird Walk
2026-03-15 08:00 - 11:00 | PA
Come join us at The Great Marsh Institute on Sunday, March 15th at 8:00 AM for our monthly bird walk. Please RSVP to lori@greatmarshinstitute.org. This will help us to organize and keep groups small. This event is free but donations are always welcome via our Paypal, Venmo, or cash donations at the door.

Great Marsh Open House (Artist Day)
2026-03-21 | Great Marsh Institute, 28 MOORES RD, Elverson, PA, 19520, United States
Calling all artists (and non-artists too)! Saturday, March, 21st the Great Marsh will be open dawn to dusk. Take a self-guided tour to paint, take photos, or simply enjoy the wetlands, woods, and meadows.
If you are interested in attending, please RSVP to lori@greatmarshinstitute.org with your name and the time you plan to arrive. Check-in will be at the Farm House.
This event is free of charge but we humbly ask for a suggested donation of $20. Donate through our Paypal, Venmo, or make a cash donation at the door
