Eel River NowRiver reports · places

South Fork Eel River · near Myers Flat

Williams Grove

A named state-park day-use grove and swimming location along the South Fork in Humboldt Redwoods State Park.

Also known as: Williams Grove swimming hole

Selected place

Can I swim now?

Williams GroveSouth Fork Eel River

No recent algae test listed for this spot

This is not an all-clear. Check the current statewide reports map and signs at the site.

Site-specific result not listed in the current FHABS exportCalifornia HAB reports map ↗
Practical algae information

Harmful algal mats can occur in clear water and reports are not comprehensive. Avoid visible mats or discolored, stagnant water; keep children and pets away from affected water. Only testing can determine whether toxins are present.

California toxic algal mat guidance ↗

Weather

Today’s high: 99°F · Mostly SunnyNational Weather Service · Sep 9, 2026, 2:10 PM PDT

River reading

River level is steadySouth Fork near Miranda · observed Sep 9, 2026, 4:30 PM PDT
Measurement details

35.9 ft³/s flow · 6.22 ft gauge height

Flow measures how much water passes the gauge. Gauge height is measured from a fixed reference; it is not the depth at your swimming spot.

Access

Public access documentedUse the signed Williams Grove day-use entrance and parking from Avenue of the Giants.
Parking
Use the signed Williams Grove day-use entrance and parking from Avenue of the Giants.
Restrictions
No lifeguard is on duty. River bars and depth change with seasonal flow.
Facilities
  • Parking
  • Picnic area
  • Accessible picnicking and restroom features listed by State Parks

Listed facilities come from the cited manager record. Check current restrictions and posted signs before use.

Directions to parking ↗Open name in Google Maps ↗
Sources and verification

Manager: California State Parks. Parking directions are shown only where the public entrance is documented.