Tacoma Hiking & Backpacking Calendar
Select any calendar item to get a link to the activity or event page, where you can find more information and register.
*Please note that advanced registration is required for all activities. If you're not a Mountaineers member, you're invited to participate in up to two activities as a guest - you'll just need to create a Mountaineers guest account.
Day Hike - Double Si
Day Hiking Trip
Double Mt. Si. Ascent via the new trail from the main Mt. Si lot, up
Difficulty: Moderate/Strenuous
Sat, Dec 20, 2025
No Prerequisites, Leader's Permission Required
Day Hike - Cougar Mountain: Jim Whittaker Wilderness Peak Trailhead
Day Hiking Trip
The many interconnected trails in the Cougar Mountain area provide many out-and-back and loop day
Difficulty: *Varies*
Sun, Dec 21, 2025
No Prerequisites
Winter Hiking Series: I-90 Alley Classroom Session - Online Classroom
Day Hiking Lecture: Winter Hiking Series: I-90 Alley
An evening online zoom lecture to introduce students to the day hiking course, its graduation
Tue, Jan 6, 2026
Prerequisites
Winter Hiking Series: I-90 Alley January Hikes - Granite & Thompson Lakes
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: extremely strenuous
Sat, Jan 10, 2026
Prerequisites, Leader's Permission Required
Winter Hiking Series: I-90 Alley January Hikes - Margaret's Way to Debbie's View
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate
Sat, Jan 10, 2026
Prerequisites
Day Hike - Kanaskat-Palmer State Park
Day Hiking Trip
***A WELCOME TO HIKING HIKE*** These will be winter hikes sponsored by Tacoma Hiking and
Difficulty: Easy
Sat, Jan 10, 2026
No Prerequisites, Leader's Permission Required
Winter Hiking Series: I-90 Alley January Hikes - Taylor Mountain—Holder Knob Loop
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate
Sat, Jan 10, 2026
Prerequisites
Winter Hiking Series: I-90 Alley January Hikes - Squak Mountain: May Valley Access
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate/Strenuous
Sun, Jan 11, 2026
Prerequisites
Winter Hiking Series: I-90 Alley January Hikes - Around South Tiger Mountain
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate
Sun, Jan 11, 2026
Prerequisites
Winter Hiking Series: I-90 Alley January Hikes - Hugo Peak & Windy Ridge
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate
Wed, Jan 14, 2026
Prerequisites
Winter Hiking Series: I-90 Alley January Hikes - Poo Poo Point via Chirico Trail
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate
Sat, Jan 17, 2026
Prerequisites
Winter Hiking Series: I-90 Alley January Hikes - West Tiger Mountain No. 3
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate/Strenuous
Sun, Jan 18, 2026
Prerequisites
Winter Hiking Series: I-90 Alley January Hikes - Pinnacle Peak/South Trail
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
A mid-winter wander around the Pinnacle Peak Park trails with a stop at the fire
Difficulty: Moderate
Wed, Jan 21, 2026
Prerequisites
Winter Hiking Series: I-90 Alley January Hikes - Poo Poo Point via Chirico Trail
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate
Wed, Jan 21, 2026
Prerequisites
Winter Hiking Series: I-90 Alley January Hikes - Rattlesnake Mountain Grand Traverse
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Strenuous
Fri, Jan 23, 2026
Prerequisites
Winter Hiking Series: I-90 Alley January Hikes - Little Si & Boulder Garden Loop
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Easy/Moderate, Strenuous 1, Technical 4
Sat, Jan 24, 2026
Prerequisites
Winter Hiking Series: I-90 Alley January Hikes - Dirty Harry's Balcony
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate
Sun, Jan 25, 2026
Prerequisites
Winter Hiking Series: I-90 Alley January Hikes - Green Mountain: Gold Creek Trail
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Easy/Moderate
Fri, Jan 30, 2026
Prerequisites
Winter Hiking Series: I-90 Alley January Hikes - Poo Poo Point via High School Trail
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate
Sat, Jan 31, 2026
Prerequisites
Winter Hiking Series: I-90 Alley January Hikes - Margaret's Way to Debbie's View
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate
Sat, Jan 31, 2026
Prerequisites
New Hike/Backpack/Urban Walk Leader Seminar - Mountaineers Tacoma Program Center
Day Hiking, Urban Walking & Backpacking Seminar
Learn about becoming a Hike, Backpack or Urnan Walk Leader for The Mountaineers!
Tue, Feb 3, 2026
No Prerequisites
Winter Hiking Series: I-90 Alley February Hikes - Mailbox Peak
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Very Strenuous
Thu, Feb 5, 2026
Prerequisites
Winter Hiking Series: I-90 Alley February Hikes - Mount Washington (Snoqualmie)
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Strenuous
Sat, Feb 7, 2026
Prerequisites
Winter Hiking Series: I-90 Alley February Hikes - Middle Tiger Mountain
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate
Sat, Feb 7, 2026
Prerequisites
Winter Hiking Series: I-90 Alley February Hikes - Cedar Butte (Olallie State Park)
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Easy
Sun, Feb 8, 2026
Prerequisites
Winter Hiking Series: I-90 Alley February Hikes - Little Si & Boulder Garden Loop
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate
Wed, Feb 11, 2026
Prerequisites
Winter Hiking Series: I-90 Alley February Hikes - Rattlesnake Second Ledge
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate
Fri, Feb 13, 2026
Prerequisites
Winter Hiking Series: I-90 Alley February Hikes - Poo Poo Point via High School Trail
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Easy/Moderate
Sat, Feb 14, 2026
Prerequisites
Winter Hiking Series: I-90 Alley February Hikes - Otter Falls
Day Hiking Field trip: Winter Hiking Series: I-90 Alley
Trip initially open to Winter Hiking Series students. Trip will open for registration to all
Difficulty: Moderate
Mon, Feb 16, 2026
Prerequisites