I usually park at the Nature Center, explore the bank up to the Tractor Museum and fish back down.
Make sure you don't go below the fence at the bottom of the Nature Center - that belongs to the guy who donated all the park land.
A wading staff is a great idea - really helps traveling distance, keeping yourself up on rutted dolomite, exploring what's in front of you - I always use a 4-pc trekking pole, and clip it to a biner on my fishing bag. Also in the tight overhang of Cibolo, a short glass rod is an advantage (below I'm fishing a Phillipson MF60C).
This is between the tractor museum and nature center
Cibolo is one of only two remaining A-strains of endemic Guadalupe bass, isolated from feral smallmouth genetics because the creek disappears into the aquifer a few miles down from Boerne. There are also Big largemouth in Cibolo that have seen it all.
this is Center Point down from Turtle Creek crossing at about 300 cfs.
One day like this fishing (really trolling seams) with a Teeny line I caught 200 bass just in chutes.
Our endemic bass live in faster water than trout would occupy.
My best endemic bass came from Mueller falls (above Rebecca's Creek crossing).
The river sources the Trinity aquifer here, and there's a bat cave vent.
She got this big eating the baby bats that fell in. Would have been the record, but 2005, and there were no catch-and-release records then - I wasn't going to kill her for a liver biopsy.
Endemic Guadalupe bass are also the only fish that retreat into the aquifer during drought.
My best red-ear came from the confluence of the Guadalupe forks
My best yellow-belly from an oxbow in the Pedernales headwaters (Many big fish up there).
My best river bass came from the upper Sabinal - 28 inches and about 10 lbs.
Broke off much bigger bass than this in timber on the Frio sendero - buddy has a family ranch there, otherise, no public access.
Seco and Hondo creeks have bigger bass than these, but no public access.
A really educational wade is Williams creek in Tarpley. You can stand over blue holes and look into the aquifer.
This is some of that private water on Seco creek, but where Jimbo is fishing used to be the aquifer before the roof collapsed.
All the deep pools you see on the Guadalupe were formed by floods getting under the flagstone, lifting layers to build natural dams. Subsequent floods gradually fill them with gravel bars. We witnessed a new one down from Center Point FM350 crossing, right where a cold creek comes in from the side - the seams from the cold current entering the hole were a hot spot for big bass. Also on the flagstone above the big hole, bass would come out of the hole and hunt. I caught several big bass by sitting on the bank and watching for minnows jumping out of the water, then stalking the pod bass.
Also going down from FM350, the left-bank landowners are good about you hiking the bank. I always carry a liter bag and use it - makes great graces with the landowners, and can get you a long way from the crossing.
There were bass over 10 lbs in this pool on Seco creek - one cut me off on the rocks, diving into the overhang.
Way down from Center Point Turtle Creek crossing - caught 7 bass in the frame of this photo.