Waimea Valley is a tropical garden with many types of flora and fauna. Walking through the gardens was a beautiful interlude to the main event we were interested in...Waimea Falls. There is a water fall and pool that is gorgeous. It is a walk to get to it but was definitely worth it, even if we got there a little late in the day. There is a sort of a changing room, but I'd recommend wearing your swimming wear into the park and chaning out of them somewhere else. The falls itself is watched over by lifeguards and the water is great. In fact it was a bit cool coming off the top of the falls. There is a swim out to the falls over a deep pool to get to the foot of hte falls but that's half the fun. However, getting to the water can be a trick, the staging area is small and very rocky. Wear sandals/flip flops, etc to the waters edge and then step into the pool. The staging area as mentioned is small and can be crowded. There are spaghetti tubes available to float on so I wouldn't bring flotation devices of your own to use. There are numerous warning signs up not to "release water" or pollute (urinate) the pool and that's sound advice. There is a fee to get into the garden area and the drive on the North Shore can be a challenge, but worth the exercise.