Natural swimming hole
The Slab on the Llano River
River · Texas
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
The Slab is a broad, flat limestone shelf where FM 3404 crosses the Llano River in Kingsland. Locals sunbathe on the warm rock and wade the shallow, clear water, with deeper pockets for a real swim. It is free, informal, and pure Hill Country.
Good to know
| Water type | River |
|---|---|
| Depth | Shallow wading; deeper pockets |
| Best season | May-September |
| Fees | Free |
| Reservations required | No |
| Hours | Daylight hours |
| Parking | Roadside parking near FM 3404 crossing |
| County | Llano County |
| Nearest town | Kingsland |
| Safety notes | No lifeguard. Slippery limestone; river rises after storms. |
Map
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Frequently asked questions
Can you swim in The Slab on the Llano River?
Yes — The Slab on the Llano River is listed as a natural swimming spot in Texas. Heads-up: No lifeguard. Slippery limestone; river rises after storms.. There are rarely lifeguards at natural swimming holes — verify conditions locally before you go.
Does The Slab on the Llano River require reservations?
No reservations are required at The Slab on the Llano River based on current information — but verify before you go.
Is there a fee to visit The Slab on the Llano River?
Reported fee info: Free. Fees can change — confirm with the official link.
When is the best time to visit The Slab on the Llano River?
The best season is typically May-September.