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Established Camping

Mary Island State Park — Mary Island

Mary Island State Park offers camping on an island with terrain featuring wooded areas and waterfront views. The weather varies with summer temperatures ranging from 60°F to 80°F, while winter temperatures can drop to 10°F to 30°F. Nearby attractions include the Thousand Islands region and Boldt Castle, providing opportunities for exploration and sightseeing.

Description

NYS Office of Parks, Recreation and Historic Preservation

Mary Island State Park

Mary Island State Park comprises 12 heavily-wooded acres with steep rocky outcroppings. Twelve waterfront campsites are scattered throughout the park, offering seclusion and spectacular views of the Canadian shore or the shipping channel. Boats may be beached or moored near campsites. The park has a picnic area and several foot trails.

The only way to access the park is by boat, there are no bridges or ferries.

Camper must have at least a 14' motorized boat to access Mary Island. Boaters are instructed to launch from Keewaydin State Park. Motor boats can be rented at Keewaydin State Park Marina. Boat rentals are available at Wellesley Island State Park Marina 315-482-6503.

Park Rules & Information:

  • Mary Island operates under a 2-day window for advance reservations.
  • Camper must be at least 18 years old to register for a site.

<font color="red"><b>ATTENTION PET OWNERS:</b></font>

  • Current proof of rabies inoculation is required at check-in (metal tags will not be accepted).
  • At any time during your stay, pet owners may be required to provide proof of rabies inoculation upon request. Be sure to have this information available to present to park staff.
  • Where pets are permitted, there is a maximum limit of 2 pets per site.
  • Pets must be on a leash no longer than 6ft and under control at all times.
  • Do not leave pets unattended and always clean up after them.
  • Pet owners/permit holders are liable for any damage, personal injury, or nuisance caused by the pet.

Looking to reserve a campsite for just 1 night? If you make your reservation within 3 days of your arrival you can book a 1-night stay online or through the RA Call Center (1-800-456-2267). *Applies to campsites only.

PRE-REGISTRATION: Have an existing reservation? Don't forget to PRE-REGISTER!! Two days prior to arrival you can sign into Reserve America and pre-register. IT SAVES TIME.

LENGTH OF STAY: A camping party and their equipment may occupy a site for a maximum of 14 continuous nights. After which, the camping party and equipment must leave the site and facility for 48 hours before registering again for another site.

Please Note: To ensure fairness for all NY customers, any reservation with departure dates outside the 9-month Maximum Window cannot be changed or cancelled until 18 days after the reservation was made.

OPRHP General Camping Rules, Information, and Cancellation Policy

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Location

Mary Island State Park — Mary Island is located in New York

Detail location of campground

Directions

Mary Island is located to the east of Wellesley Island, with only a narrow channel separating them. Access is by boat only, from either Grass Point State Park (4 miles over water), or Keewaydin State Park, which is 2 miles from the island. Patrons must have at least a 14' motorized boat to access Mary Island. Boaters are instructed to launch from Keewaydin State Park. Motor boats can be rented at Keewaydin State Park marina. 315-482-9381

Address

36661 CEDAR PT.STATE PK.DRIVE
Clayton, NY 13624

Coordinates

44.36565834 N
75.92180028 W

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Access

  • Drive-In
    Park next to your site

Stay Connected

  • WiFi
    Unknown
  • Verizon
    Good
  • AT&T
    Good
  • T-Mobile
    Good

Site Types

  • Tent Sites

Features

For Campers

  • Picnic Table
  • Reservable
  • Showers
  • Electric Hookups
  • Toilets
  • Pets
  • Fires

For Vehicles

  • Sewer Hookups
  • Water Hookups
  • 30 Amp Hookups
  • 50 Amp Hookups
  • Big Rig Friendly

Drive Time


Reviews

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5.0

out of 5

1 Review

Reviewed Jun. 27, 2017

The BEST

The best camp site I have ever had the privilege of enjoying.

  1. You can only get to it by boat. How awesome!?
  2. Every site is far away from the next and each has its own unique and beautiful view of the water and surrounding islands.
Month of VisitAugust

Frequently Asked Questions

  • Does Mary Island State Park — Mary Island have RV hookups?

    According to TheDyrt.com, Mary Island State Park — Mary Island has 30 amp and 50 amp electric hookups, water hookups and sewer hookups.

  • What is the max vehicle length at Mary Island State Park — Mary Island?

    Mary Island State Park — Mary Island allows vehicles up to 40 feet.

  • Are fires allowed at Mary Island State Park — Mary Island?

    Yes, according to campers on TheDyrt.com, fires are allowed at Mary Island State Park — Mary Island, although make sure to check current fire restrictions in the area.