Don't be confused: There are two campgrounds with the name Pecan Park. Our new neighbors have an RV park called Pecan Park Campground. If you are looking for a full-fledged RV park with full hookups, paved pads, and an indoor swimming pool, you need to visit their site or give them a call: 512-396-0070.
Pecan Park Retreat is a private (not open to the general public) alcohol-free campground serving youth groups and church groups located on the banks of the beautiful spring-fed San Marcos River, and shaded by centuries-old pecan trees. We have twenty-two sites with water, electricity, and picnic tables; restrooms with hot showers; volleyball; and a swimming beach. The campground is secluded, yet conveniently located just two miles from the town of San Marcos. It is approximately one hour from Austin or San Antonio, and three to four hours from Houston or Dallas. We allow small RV's to camp here (if you are with a youth group or church group or have secured special permission for your family) but be warned that it will be primitive RV camping - you will be parking in a pecan bottom, along the river. There will be no cable TV, indoor swimming pool nor 50 amp service (many of our sites do have 30 amp service - you should be sure to have such a site reserved if you need more than 20 amp).
Weather for San Marcos: The Weather Channel
To find the flow of the San Marcos River go to: USGS Realtime Flows for Texas and then find the Guadalupe River System. You can then find the flow of the Upper San Marcos and the flow of the Blanco River (it takes the water about four hours to get from Wimberley to Kyle and another four hours to get from Kyle to Pecan Park Retreat). The flow at Pecan Park Retreat is the combined flow of the San Marcos and the Blanco Rivers. The flow is given in cfs - which means cubic feet per second. The average flow of the San Marcos river is about 130 cfs. 100 cfs is pretty low. 500 cfs is very good flow (novices have to be very careful which section of river they run) and anything from 1000 cfs up is very high water for experts only. 10,000 cfs means the lower campground sites are underwater, 20,000 puts water in or very close to the bathhouse, and 30,000 means the campground is underwater.