Punta Uva, near Puerto Viejo of Talamanca, is a fantastic place to visit. The water is incredibly clear and great for many activities. There is great snorkeling, scuba diving, sea kayaking, swimming and lounging around on the beach. And, the short hike (~ 5 minutes) takes you past the grave of the (apparent) last pirate of the area. We were also told that the most recent (and not yet released) Pirates of the Caribbean movie just finished filming here. The trailhead to the cache starts at the south end of the beach, near the point itself. It's a short walk through the forest out to the farthest reach of the point. You'll be rewarded with a beautiful view. It is not near the edge of the dropoff.
Finding this cache is guaranteed to put a big smile on your face.