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Details

Activity Type: Social | Local Socials
Difficulty: 2 - Relaxed
Trip Leader(s): Catherine Bentsen, Christopher Mastroianni, Jordan Lampert, Alexander DeLaney, Amy Liljestrand
Registration Type: Application
Please Click Here to RSVP: https://activities.outdoors.org/a5UVX000001EZgT
Register By: 9/10/2026
Audience: 20’s & 30’s

Description: Join AMC Boston 20s & 30s for the annual Three Mile Island (TMI) Weekend on September 11-13, 2026! This trip will offer priority registration to AMC members through July 31. If you are not a current AMC member, you may register after July 31.
What is Three Mile Island? AMC’s Three Mile Island (TMI) is set up as a rest and relaxation camp. Built on a tradition of simplicity, participants enjoy canoeing, kayaking, relaxing by their cabin, and playing games! Situated on an island of 43 rocky woodland acres, Three Mile Island on Lake Winnipesaukee offers a delightful recreational experience in the heart of New Hampshire's lake district. Sleeping consists of quaint 2-person cabins right on the water’s edge. Wake up to the sounds of loons and beautiful sunrises! Most meals are provided and are served family-style in a warm, social atmosphere. A great opportunity to escape modern stresses, campers agree to keep electronic devices in their own cabins, freeing themselves to enjoy nature, good food, and great company.
For more information, read through the FAQs , check out the Three Mile Island website , and get ready to sign up!
Important Information about Registration Three Mile Island is one of AMC 20s & 30s most popular trips. In order to accommodate the high demand, AMC is hosting two weekends: September 11-13 (50 spots) and September 25-27 (40 spots). The first trip (this one!) will give priority registration to AMC members for registrations prior to July 31.
When you register for this trip, include your AMC member number in the “Additional Information” section. If you register before July 31 and do not include your AMC member number, your registration will be canceled and your trip cost refunded.
How much does the trip cost? Trip costs are $273.02 per person for AMC members and $304.10 per person for non-members . The cost includes lodging in 2-person cabins (double occupancy), ferries to and from island, unlimited boat use (canoes, kayaks, paddleboards), meals (Saturday breakfast through Sunday lunch), and campfire snacks.
I am not an AMC member yet, how can I join? Anyone can become an AMC member! Membership helps promote AMC’s mission to “foster the protection, enjoyment, and understanding of the outdoors”. Your membership works to directly support land protection and conservation, trail maintenance, outdoors education and programming, environmental monitoring and more. Members also receive discounts on outdoors trips, AMC huts and lodges, and gear from the AMC Store. Annual membership is $25 for those under age 30, and $50 for individuals. More information about AMC membership is included here .
The trip is full, how can I join the waitlist? Email Kate ( katebentsen@gmail.com ) to add your name to the waitlist. The Outdoors Connector registration system does not have a built-in waitlist function for trips that require payment. If a spot opens due to a cancellation, the waitlist will be emailed to fill the spot on a first-come, first-served basis.
I can no longer go on the trip, how do I cancel? Email Kate ( katebentsen@gmail.com ) to cancel your registration. If you cancel on or before August 28, you will receive a full refund. If you cancel after August 28, you will receive a refund if we are able to fill your spot from the waitlist. If you cancel after September 7, you will not receive a refund. Refunds will be issued after the trip occurs.

Reminder: Please click the RSVP link above to register!

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