California · Rock climbing · Thousand Oaks

Gainsborough Boulders

Gainsborough Boulders in California has 8 bouldering routes.

8 routes
V0 – V3+
Bouldering

Best time to visit Gainsborough Boulders

Best months: October–May. 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

    70° / 43°

    6 wet

  2. Feb

    70° / 44°

    7 wet

  3. Mar

    74° / 46°

    6 wet

  4. Apr

    78° / 48°

    3 wet

  5. May

    82° / 53°

    1 wet

  6. Jun

    89° / 57°

    0 wet

  7. Jul

    95° / 61°

    0 wet

  8. Aug

    97° / 61°

    0 wet

  9. Sep

    94° / 59°

    1 wet

  10. Oct

    85° / 53°

    2 wet

  11. Nov

    76° / 46°

    3 wet

  12. Dec

    69° / 42°

    6 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Woodland Hills Pierce College, CA, 17.9 mi away at 790 ft. Source: NOAA NCEI U.S. Climate Normals 1991–2020.

Gainsborough Boulders is a bouldering area in California, set within the Tarantula Hill land unit on regional agency land. The name points to the boulders themselves, and the climbing here is all bouldering, with eight routes spread across the site. The boulders sit in a cluster of climbing and hiking close to the Tarantula Hill area. The closest trails are Walnut Grove Trail, about a mile away, and Lynnmere Trail East and Las Flores Trail, each roughly 1.1 miles off. For more bouldering, Lower Irish Boulders lies about 4.4 miles away. The climbing is rated from V0 to V3+, with most routes sitting at V0 or V1. Arachnoflake and Redwood Corner are the easiest, and Tarantula Traverse is the hardest. The area works well as a short outing, with several routes close together. Spring and fall are the most comfortable times to visit. Typical averages from a nearby weather station show April highs around 78°F and October highs around 85°F, while July and August average in the mid-90s.

Routes (8)

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