Natural swimming hole
Blue Rock (Navarro River)
River · California
Community-reported spot. Details below are compiled from public sources and are reported to be accurate — always verify locally before visiting.
About this swimming hole
A beloved Navarro River pool about a mile and a half below the Floodgate Creek junction, with a deep blue hole and sun-warmed rocks. Reaching it requires scrambling the riverbank — not a casual stroll. Local lore and a long swimming tradition surround the spot.
Good to know
| Water type | River |
|---|---|
| Water temperature | Around 65 in summer |
| Depth | Deep blue hole |
| Best season | July-September |
| Reservations required | No |
| Parking | Riverbank pullouts; scramble required |
| County | Mendocino County |
| Nearest town | Philo |
| Safety notes | Slippery rocks; no lifeguards; respect private land on approach |
Map
(approximate location)Nearby swimming holes
Frequently asked questions
Can you swim in Blue Rock (Navarro River)?
Yes — Blue Rock (Navarro River) is listed as a natural swimming spot in California. Reported water temperature: Around 65 in summer. Heads-up: Slippery rocks; no lifeguards; respect private land on approach. There are rarely lifeguards at natural swimming holes — verify conditions locally before you go.
Does Blue Rock (Navarro River) require reservations?
No reservations are required at Blue Rock (Navarro River) based on current information — but verify before you go.
When is the best time to visit Blue Rock (Navarro River)?
The best season is typically July-September.
Is Blue Rock (Navarro River) safe for swimming?
Reported safety notes: Slippery rocks; no lifeguards; respect private land on approach. There are rarely lifeguards at natural swimming holes — swim at your own risk.