The best waterfall hikes and walks in El Sereno Open Space Preserve
4.6
(208)
3,220
hikers
9
hikes
Last updated: October 7, 2025
5.0
(4)
22
hikers
1. Sanborn Trail – Indian Rock loop from Saratoga
15.9km
05:06
660m
660m
Expert hike. Very good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
4.8
(21)
223
hikers
2. Castle Rock Falls loop - Castle Rock State Park
8.57km
02:42
330m
330m
Expert hike. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
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5.0
(4)
41
hikers
3. Castle Rock Falls – Loughry Woods Trail loop from Los Gatos
10.1km
03:01
310m
310m
Expert hike. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
4.7
(17)
182
hikers
4. Castle Rock – Castle Rock Falls loop from Los Gatos
8.93km
02:47
330m
330m
Expert hike. Good fitness required. Sure-footedness, sturdy shoes and alpine experience required.
23
hikers
5. Castle Rock – Castle Rock Falls loop from Saratoga
4.73km
01:27
160m
160m
Expert hike. Great for any fitness level. Sure-footedness, sturdy shoes and alpine experience required.
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