Seattle Naturalists’ Event Roundup: August 17th to August 23rd

Hey Naturalists, August feels like it’s swimming on by but there’s still plenty of wild activities to get outside this week.

As always, check event pages for updates, registration requirements, and weather-related changes before heading out. Be mindful stewards of the places we visit. Leave no trace, respect wildlife, and help care for the lands and waters that make our region so special.

How to Use This Guide

This guide is organized by date, making it easy to browse or quickly find events that match your interests.

On a computer: Press Ctrl + F (Windows) or ⌘ + F (Mac) to search for a keyword, such as birds, volunteer, Seattle, or bat.

On an iPhone or iPad: Tap the Share button in your browser (or the ••• menu, depending on the app), then select Find on Page and enter a keyword to jump directly to matching events.

Tufted Puffin with fish in the Salish Sea

Monday, August 17, 2026

Volunteer Land Stewardship Day
10:00 AM–2:00 PM
The Heron's Nest
Free • In-Person

Stride with Pride: Green Lake Walk
6:00 PM–8:00 PM
Queer Mountaineers
Free • In-Person
https://www.queermountaineers.com/washington-events

Proving the Origins of the Universe: Neutrino Mass Measurement by Meg Wynne
6:30 PM–8:30 PM
SmartyPints!
Free • In-Person

Lost in Curiosity: Field Notes from Scientists’ Adventures into the Unknown by Roberta Kwok
6:30 PM–8:30 PM
SmartyPints!
Free • In-Person

Tuesday, August 18, 2026

Book Club: Raising Hare: A Memoir by Chloe Dalton
7:00 PM–9:00 PM
Eastside Audubon
Free • Online
https://www.eastsideaudubon.org/calendar?view=calendar&month=08-2026

Wednesday, August 19, 2026

Family Nature Exploration: Pond
9:00 AM–11:00 AM
Seattle Parks & Recreation
Free • In-Person
https://anc.apm.activecommunities.com/seattle/activity/search?onlineSiteId=0&drop_in=0&activity_keyword=nature&viewMode=list

Litter Pickup
10:00 AM–12:00 PM
Friends of Lake Sammamish State Park
Free • In-Person
https://www.lakesammamishfriends.org/events-calendar-view

Knowledge Bites: How Regional Connections Accelerate Salmon Recovery
12:00 PM–1:00 PM
Long Live the Kings
Free • Online
https://lltk.org/events/

Kayak Cleanup – Lake Union
12:00 PM–2:00 PM
Puget Soundkeeper
Free • In-Person
https://pugetsoundkeeper.org/events/

Birds of Seattle Lunch & Learn
12:15 PM–12:45 PM
Birds Connect Seattle
Free • In-Person
https://birdsconnectsea.org/calendar/

Guided Nature Walk | Summer Sky Hunters
2:00 PM–4:00 PM
Seward Park Audubon
Free • In-Person
https://www.audubon.org/events?view_type=row&location=Seward%20Park%20Audubon%20Center

Membership Meetup
6:30 PM–9:00 PM
Seattle Astronomical Society
Free • In-Person
https://www.seattleastro.org/events

Instrumentation & Archaeology
7:00 PM–9:00 PM
Astronomy on Tap Seattle
Free • In-Person
https://www.facebook.com/AoTSeattle

Class: Shorebirds (Session #3)
7:00 PM–8:30 PM
Pilchuck Audubon
Cost • Online
https://www.pilchuckaudubon.org/calendar

Bat Activity Trends (BAT)
8:00 PM–8:30 PM
Seward Park Audubon
Free • In-Person
https://www.audubon.org/events?view_type=row&location=Seward%20Park%20Audubon%20Center

Thursday, August 20, 2026

Family Science Time – Chemistry (Grades K–5)
1:00 PM–3:00 PM
Environmental Science Center
Free • In-Person
https://www.envsciencecenter.org/events

Lowell Riverfront Trail Nature Walk
6:30 PM–8:30 PM
Beavers Northwest
Free • In-Person
https://beaversnw.org/events

Shorebirds with David Droppers (Class #2)
7:00 PM–8:30 PM
Birds Connect Seattle
Cost • Online
https://birdsconnectsea.org/calendar/

Skeptipalooza 2026: Science and Skepticism
August 20–23
Check website for event times and details
Free • In-Person
http://seattleskeptics.net/skeptipalooza-2026/

Friday, August 21, 2026

Molt Search Training: Seabeck
10:00 AM–11:30 AM
WA Sea Grant
Free • In-Person
https://waseagrant.uw.edu/news-events/calendar/

Seattle Aquarium Naturalists – Ballard Locks
10:00 AM–2:00 PM
Seattle Aquarium
Free • In-Person
https://www.seattleaquarium.org/explore-the-aquarium/programs/cedar-river-salmon-journey/

Nursery Event at Lake Sammamish State Park
10:00 AM–1:00 PM
Mountains to Sound Greenway
Free • In-Person
https://mtsgreenway.org/get-involved/events/

Evening Dock Walk
5:00 PM–7:00 PM
The Salish Sea School
Free • In-Person
https://www.thesalishseaschool.org/community-events

Covington City Park – Astronomy Class & Stargazing
6:00 PM–11:00 PM
Seattle Astronomical Society
Free • In-Person
https://www.seattleastro.org/events

Nature Walk at Juanita Bay Park
6:30 PM–8:30 PM
Beavers Northwest
Free • In-Person
https://beaversnw.org/events

Bat Talk at Green Lake
7:30 PM–8:30 PM
Bats Northwest
Free • In-Person
https://www.batsnorthwest.org/events

Film Screening: Wayfinders: Waves, Winds, and Stars
7:30 PM–9:30 PM
UW & Sirius Astronomy
Cost • In-Person
https://www.instagram.com/siriusastronomynw/

Saturday, August 22, 2026

Bird Walk at Tolt-MacDonald Park
7:15 AM–10:15 AM
Birds Connect Seattle
Cost • In-Person
https://birdsconnectsea.org/calendar/

Class: Shorebirds – Field Trip
9:00 AM–5:00 PM
Pilchuck Audubon
Cost • In-Person
https://www.pilchuckaudubon.org/calendar

Neighborhood Bird Outing: Union Bay Natural Area
9:00 AM–11:00 AM
Birds Connect Seattle
Free • In-Person
https://birdsconnectsea.org/calendar/

Cle Elum Trailhead Kiosk Installations
9:00 AM–3:00 PM
Mountains to Sound Greenway
Free • In-Person
https://mtsgreenway.org/get-involved/events/

Evening Dock Walk
10:00 AM–11:30 AM
The Salish Sea School
Free • In-Person
https://www.thesalishseaschool.org/community-events

BIPOC BioBlitz
10:00 AM–1:00 PM
Urban-Woods Initiative
Free • In-Person
https://www.instagram.com/urbanwoodsinitiative/

Gathering Abundance Series: Blackberry Jam-boree
10:00 AM–1:00 PM
Friends of Lake Sammamish State Park
Cost • In-Person
https://www.lakesammamishfriends.org/events-calendar-view

Midsummer Wilderness Walk – Duwamish Land
10:00 AM–12:30 PM
Trillium Sustainability
Cost • In-Person
https://trillium.eco/events

Habitat Restoration at Lake Sammamish State Park
10:00 AM–1:00 PM
Mountains to Sound Greenway & Washington State Parks
Free • In-Person
https://mtsgreenway.org/get-involved/events/

Geology Hike & Talk
10:00 AM–1:00 PM
The Nature Conservancy
Free • In-Person
https://www.nature.org/en-us/get-involved/how-to-help/events/?r=United%20States&s=Washington

Amazing Adaptations! | Feathers & Molting
2:00 PM–3:00 PM
Seward Park Audubon
Free • In-Person
https://www.audubon.org/events?view_type=row&location=Seward%20Park%20Audubon%20Center

Sunday, August 23, 2026

Hope Island South Paddle and Picnic
8:00 AM–5:00 PM
Washington Water Trails Association
Cost • In-Person
https://www.wwta.org/events/

Nature Journaling and Walk
10:00 AM–1:30 PM
The Nature Conservancy
Free • In-Person
https://www.nature.org/en-us/get-involved/how-to-help/events/washington-journaling-walk/

Marbled Murrelet Survey
12:00 PM–2:00 PM
The Salish Sea School
Free • In-Person
https://www.thesalishseaschool.org/community-events