I posted this on TripAdvisor, but thought I should post it here as well.
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Finally made it to the waterfall this year. Followed directions from this site:
http://brainwrite.com/2008/how-to-find- ... -del-mayo/Even these directions weren't totally clear. You're tooling along what is obviously a private ranch, going over cattle guards and through holes in the barbed wire fencing. There are signs with confusing arrows (turn right!) and, finally, you'll make it. You'll know you're there when it dead ends and you see a thatched cuarto de baño (bathroom).
The day that we went, no one was there to collect the fee, either when we arrived, or by the time we left. There was also no "deposit" box where we could leave money, nor did we have any idea what we should have paid anyway. Made us feel a little guilty. Next time we go, we'll just pay double, I guess.
I'd tell you how gorgeous it was, but pictures are worth a thousand words:
http://picasaweb.google.com/swissyrescu ... eat=email#BTW - If you're afraid of heights or would have difficultly scaling what is essentially a very steep rock cliff (with "steps" ha ha ha built into the cliff side), then you won't make it past the half-way mark on the trail. Two of our party could go no further -- the rest of us went all the way down. The water was cool and wonderful, but we didn't swim because we didn't want to end up looking like clay figurines by the time we reached our cars at the top of the hill (water + dusty path).
Bring lots of water and a camera, of course, and some good sneakers for walking & climbing.