Washington · Rock climbing · Index

Sun Sail Boulder

Sun Sail Boulder in Washington has 6 bouldering routes across 4 grades.

6 routes
V0 – V4
Bouldering

Is Sun Sail Boulder open right now?

Closure in the area

There's a closure order in Mt. Baker-Snoqualmie National Forest. It doesn't name Sun Sail Boulder, so check the source for the area it covers (2 listed).

As of · Source: USFS · Mt. Baker-Snoqualmie National Forest. Agencies don't list every closure — check before you go.

Best time to visit Sun Sail Boulder

Best months: July–September. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.

  1. Jan

    42° / 31°

    20 wet · 4 snow

  2. Feb

    47° / 32°

    17 wet · 2 snow

  3. Mar

    52° / 34°

    19 wet · 2 snow

  4. Apr

    59° / 38°

    18 wet

  5. May

    66° / 44°

    16 wet

  6. Jun

    69° / 48°

    13 wet

  7. Jul

    77° / 52°

    7 wet

  8. Aug

    77° / 52°

    7 wet

  9. Sep

    71° / 48°

    11 wet

  10. Oct

    58° / 41°

    16 wet

  11. Nov

    47° / 36°

    20 wet · 2 snow

  12. Dec

    41° / 32°

    20 wet · 5 snow

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Baring, WA, 4.5 mi away at 770 ft. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Closures we've recorded since August 2026

  • Campfire Ban in Effect Forest-wide

    Mt. Baker-Snoqualmie National Forest · Order dated July 21, 2026; seen Aug 23, 2026 → lifted Sep 15, 2026 · Forest Service

Sun Sail Boulder is a bouldering area in Washington's Forks of the Sky state park, within the Skykomish Ranger District of Mt. Baker-Snoqualmie National Forest. The land is managed by State Park and Recreation, and the boulders sit right beside the Corridor of Funlandia and Sasquatch Boulders, both about 0.1 mile away. The climbing here is all bouldering, with six routes ranging from V0 to V4. The most straightforward is Hamster Dance at V0, and Lead Anchor is the hardest at V4. Sun Sail, the namesake route, is a V3. The area is a compact cluster of boulders rather than a long route, so a single visit can cover several problems. Summer is the most comfortable time to go. Typical averages from the nearby Baring weather station show July and August highs around 77°F with only about seven wet days a month, while winter brings highs in the low 40s and frequent snow days. Heybrook Lookout campground and the Heybrook Lookout Trail are about 1.8 miles away. Trout Creek, a paddling spot, is about 4 miles off.

Routes (6)

Keep exploring — more climbs worth the drive

Midnite BoulderPhoto: Laurel Fan, CC BY-SA 2.0 (via Flickr)

Midnite Boulder

~3 min drive

Midnite Boulder in Washington offers 5 bouldering routes ranging from moderate to difficult.

Zelda BouldersPhoto: Laurel Fan, CC BY-SA 2.0 (via Flickr)

Zelda Boulders

~3 min drive

Zelda Boulders in Washington has 10 bouldering routes across 9 grades.

The CountryPhoto: Laurel Fan, CC BY-SA 2.0 (via Flickr)

The Country

~4 min drive

Country, The in Washington has 42 climbing routes across 19 difficulty grades.

Upper RhythmPhoto: Laurel Fan, CC BY-SA 2.0 (via Flickr)

Upper Rhythm

~4 min drive

Upper Rhythm in Washington has 5 climbing routes across 4 grades, offering sport and trad options.

(D) Narrow Arrow and further rightPhoto: Laurel Fan, CC BY-SA 2.0 (via Flickr)

(D) Narrow Arrow and further right

~4 min drive

25 climbing routes in Washington spanning 18 difficulty grades.

(C) Main Wall, left sidePhoto: Laurel Fan, CC BY-SA 2.0 (via Flickr)

(C) Main Wall, left side

~4 min drive

(C) Main Wall, left side is a climbing area in Washington with 47 routes.

The LighthousePhoto: Laurel Fan, CC BY-SA 2.0 (via Flickr)

The Lighthouse

~4 min drive

Lighthouse, The in Washington has 7 mixed climbing routes with 7 distinct difficulty grades.

Upper Wall, Lower Tier and TrailPhoto: Laurel Fan, CC BY-SA 2.0 (via Flickr)

Upper Wall, Lower Tier and Trail

~4 min drive

Upper Wall, Lower Tier and Trail in Washington has 23 climbing routes across 14 grades.

Zelda Rails BoulderPhoto: Laurel Fan, CC BY-SA 2.0 (via Flickr)

Zelda Rails Boulder

~3 min drive

Zelda Rails Boulder is a bouldering area in Washington with 8 routes.

Shady Lane WestPhoto: Laurel Fan, CC BY-SA 2.0 (via Flickr)

Shady Lane West

~4 min drive

Shady Lane West in Washington has 11 routes spanning 8 grades, offering sport and trad climbing.