If you're in North Shore and looking for something that is a bit more relaxing than surfing the giant waves at Pipeline, than make a stop here. Waimea Valley has some beautiful grounds that you can slowly meander around. Bring a camera, the flowers are gorgeous! Oh yeah...and bring a swimsuit and towel! At the end of the grounds is a 40 ft waterfall that you can swim in. There's not too many of those around. I would suggest wearing reef shoes as the ground is very rocky. The pool gets around 30 ft deep in the middle and is about a 25 yard swim over to the waterfall. There is a small ledge that you can temporarily sit on under the waterfall. If the water is running a bit slower, there actually is a cubbyhole that you can climb into behind the falls. It was running to hard when we were there to try to get in there. And the water was cold!!! Refreshingly cold, but cold nonetheless. Much colder than the ocean. When you are finished swimming, there are a couple changing lockers to switch into dry clothes. You can also rent boogie boards for $2. Be sure to check in with the life guards before you go swimming. They will give you a little bit of safety information about the pool and where you can and can't swim. Waimea Valley was a great way to spend a lazy and hazy afternoon on the North Shore.