Lake Sammamish State Park

A 531-acre state park 8 miles east of Seattle with two lakefront beaches on a freshwater lake and 1.5 miles of flat, gently winding trails. You might spot salmon in the creek or great blue herons, which nest in the park.

about the park & lake

This park offers many opportunities for day-time recreation: two lakefront beaches for swimmers, kayakers, and stand-up paddlers; picnic and day-use facilities; watercraft launch areas; an ADA-compliant hiking trail; a playground; and baseball/softball fields. There is no camping at this park.

The lake is 7 miles long and 1.5 mi wide, and has a maximum depth of 105 feet.

Information for Leaders

scheduling

  • If you are scheduling this as a non-course related activity, please limit your group size to the recommended party size. The maximum party size is for use by course field trips only, and includes both students and instructors. Group size maximums do not reflect how course field trips are run (in smaller groups of students and instructors), but allow for course leaders to register the course in our system.
  • If you are scheduling a course field trip with more than 50 total people (including both participants and leaders/instructors), please contact Amanda Virbitsky (amandav@mountaineers.org) so she can reach out to State Parks staff to notify them (at least a few weeks ahead of your field trip).

permits

  • The Mountaineers has a commercial use permit with Washington State Parks for all free and fee-based outings at state parks. Leaders should carry a print or digital copy of our  commercial use permit to show rangers they may encounter.
  • Length: 9.0 nm
Map
Activities

Upcoming Activities



Seattle Open Water Instructor Training - Lake Sammamish State Park

Sea Kayaking Clinic
This training is for instructors and assistant instructors of the Seattle Basic Sea Kayaking Course
Sat, Apr 11, 2020
Prerequisites
27 participants
Registration closes Apr 9
Seattle Branch

Seattle Nomads Kayaking - Lake Sammamish

Youth Youth activity: Nomads
Join us for a day of kayaking on Lake Sammamish with some awesome Mounties kayaking
Sat, Jun 27, 2020
Prerequisites
10 participants 2 instructors 9 chaperones
Registration opens Mar 1; Instructor registration open now
Seattle Branch

Seattle Pioneers Kayaking - Lake Sammamish

Youth Youth activity: Pioneers
Join us for a day of kayaking on Lake Sammamish with some awesome Mounties kayaking
Sun, Jun 28, 2020
Prerequisites
10 participants 2 instructors 9 chaperones
Registration opens Mar 1; Instructor registration open now
Seattle Branch

Seattle Explorers Kayak - Lake Sammamish

Youth Youth activity: Explorers
Join us for a day of kayaking on Lake Sammamish with some awesome Mounties kayaking
Sat, Jul 11, 2020
Prerequisites
10 participants 2 instructors 9 chaperones
Registration opens Mar 1; Instructor registration open now
Seattle Branch

Seattle Junior MAC Kayaking - Lake Sammamish

Youth Youth activity: Junior MAC
Join us for a day of kayaking on Lake Sammamish with some awesome Mounties kayaking
Sun, Jul 12, 2020
Prerequisites
10 participants 2 instructors 7 chaperones
Registration opens Mar 1; Instructor registration open now
Seattle Branch
Trip Reports
Titles

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  • Lake Sammamish
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