Photo: Wikimedia Commons

Charter Bus to San Marcos River

The San Marcos River rises from hundreds of springs at the bottom of Spring Lake, flowing crystal-clear at a constant 72°F through the middle of town. Rio Vista Park's gentle falls are the classic tubing spot, and the river stays swimmable even in winter — a rare year-round water destination.

Rio Vista Park, 555 Cheatham St, San Marcos, TX 78666 Tubing trips, swim days and spring-fed river outings for groups.

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Plan your visit

Suggested time

2–4 hours

Best time

Summer tubing season; mild days year-round

Official website

www.visitsanmarcos.com ↗

Must-see spots

Constant 72°F spring water
Rio Vista Park falls
Tube rentals & shuttles
Glass-bottom boats at Spring Lake

Suggested itinerary · River day in San Marcos

1Tube float to Rio Vista
2Glass-bottom boat at Spring Lake
3Dinner on the downtown square

Know before you go

The float from the city park to Rio Vista takes 1–1.5 hours depending on flow.
The endangered-species habitat upstream is protected — stay in the marked recreation zones.
Glass-bottom boats at Spring Lake give non-swimmers a look at the springs.

Tips for group trips

Tube rentals and shuttle services run from several outfitters near the park — group rates available.
Buses drop at Rio Vista Park's Cheatham St entrance; weekends get packed by noon in summer.
Life jackets free with most rentals — required for kids and weak swimmers.