1. A Private Island Day Near San Marcos
Son's Island in Seguin is just 35 minutes south of San Marcos. Rent a private cabana, swim, kayak, paddle board, and grill — all on a private island with no crowds. Book a cabana.
2. Calm-Water Kayaking & Paddle Boarding
If you've outgrown the chaos of the San Marcos River, the calm waters of Lake Placid and the Cibolo are perfect. See our kayaking guide and paddle boarding guide.
3. Family-Friendly Day Trips
For families, see our family getaways near San Antonio guide. All Son's properties are family-first with shaded cabanas, shallow swim areas, and included gear.
4. Glamping Weekends Near San Marcos
For overnight stays, glamping near San Antonio covers options at Son's River Ranch and Son's Blue River Camp.
Frequently Asked Questions
How far is Son's Island from San Marcos?
About 35 minutes south on I-35, in Seguin, TX.
What's a good calmer alternative to the San Marcos River?
Lake Placid at Son's Island and the Cibolo at Sons Rio Cibolo — both calm, shaded, and ideal for families and beginners.
Are kayaks and paddle boards included?
Yes — included with cabana rentals at Son's Island and most sister properties.
Book Your Day
Reserve your spot online in under 2 minutes. Weekends and holidays sell out — book early.