The black sand beach in Wai'anapanapa State Park is really a black pebble beach, but it is pretty cool. The waves make a crackling sound when they go back.
Here I played around with my new Fader II filter, a variable neutral density filter I got just before the trip.I like what it does to the water.
ISO 100, 19mm, f20, 0.6sec. I processed the raw file 3 times in ACR, one exposed for the water, one for the land and one for the sky, and blended them with the brush in PS. This allowed me to bring out detail in the rocks without blowing out the sky and the waves.