Farrah A.
Yelp
Hamilton Pool is my heaven on Earth.
This 50-foot waterfall trickles from a mammoth limestone grotto and into a sea foam green pool--a cold pool at that. But with a quarter-mile hike through rocks and trees and carrying a cooler to get to this sweet paradise, plunging into that chilly water feels phenomenal.
For any traveler or person hosting out of towners--or co-eds looking to skip class on a scorching day--Hamilton Pool Nature Preserve is a must-see and do. Though there is no lifeguard on duty, swimming is sometimes not permitted, so call ahead before you go. And as others mentioned, go early because there is a 75-car max 'til they start the "one car out, one car in" system. And don't forget your cash, because there's an entry fee: only eight dollars a vehicle
Wear comfy tennis shoes for the hike, but don't forget your flip-flops because the rocky sands are too tough for even the manliest feet. And maybe the taking the cooler isn't the best idea. I mean, you can do it, but did you really go down there to eat and drink? I say take light snacks, drinks (maybe a beer or two, or mimosas in a plastic container, ahem) your portable folding chair, some tanning oil (or sun block) and just wear yourself out swimming.
On another note, the water was murky and brown this past visit my sisters and I made, which was disappointing because I promised that it was such a sight to see. It still was, but I think the rain waters put a damper on this view, literately. I guess it wouldn't hurt to call and ask about that too before you go. And if you're with someone who needs special assistance getting down that trail, they do have a paved driveway that goes all the way down and if you call ahead they can help make arrangements to accommodate him/her. Restrooms are on site, and they also do guided tours and hiking (I've never gone down that trail, yet.).
For more historical information, check out the official site on the 8000-year-old gem. http://www.co.travis.tx.us/tnr/parks/hamilton_pool.asp