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Things to do · 5 of 63 parks

National parks with snorkeling

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5 of the 63 US national parks list snorkeling as an activity. Here's every one, with how busy it got in 2025, its quietest month and what it costs to get in. Then tick off the ones you've done.

Bright dots offer snorkeling. Tap any park to tick it off your checklist.

Quietest picks for snorkeling

  1. 1National Park of American Samoa43,258 visits
  2. 2Dry Tortugas National Park89,355 visits
  3. 3Channel Islands National Park227,186 visits

By 2025 recreation visits (NPS).

Most parks for snorkeling

  • Florida 2
  • American Samoa 1
  • California 1
  • US Virgin Islands 1

Ideas from the National Park Service

Snorkeling ideas, park by park

The NPS lists 7 named outings tagged snorkeling across 3 of these parks. Here are the shortest few in each park. Every title opens its nps.gov page.
  • Each island of American Samoa supports a coral reef ecosystem in its coastal waters. These coral reefs support a variety of marine life typical of tropical Indo-Pacific waters. To date, over 950 species of fish and over…

  • Trunk Bay Underwater Snorkel Trail30-60 Minutes · All year

    This unique underwater trail is a great way to learn about the diverse animals of the coral reef habitat.

    Fee
  • Cinnamon Bay offers a long gently sloping snow white beach to stick your toes in, or go for a leisurely stroll. The crystal clear waters provide many delights for even a novice snorkeler. Turtles and fish of all sizes…

  • Maho Bay1-2 Hours · All year

    The perfect experience for sea turtle lovers!

From the NPS Data API's things-to-do records, checked 2026-10-01.

FAQ

Snorkeling, quickly

Which national parks offer snorkeling?
5 of the 63 national parks list snorkeling as an activity, according to the National Park Service: Biscayne, Channel Islands, Dry Tortugas, American Samoa, Virgin Islands.
What's the least crowded national park for snorkeling?
By 2025 recreation visits, National Park of American Samoa (43,258 visits), then Dry Tortugas (89,355). The busiest park on this list is Biscayne, with 486,567.
Which state has the most national parks for snorkeling?
Florida, with 2, followed by American Samoa (1).

Sources · 2

  1. 1.NPS Data API — /parks (all park units) · National Park Service (U.S. Department of the Interior)
  2. 2.NPS Visitor Use Statistics — monthly recreation visits, 2021–2025 (IRMA stats REST service) · National Park Service (U.S. Department of the Interior) — Visitor Use Statistics Program

Activities are the ones each park lists in the NPS Data API. Check the park's own nps.gov page for current trail, water and permit conditions.

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