The hike down the trail was beautiful due to the scenery and shoreline views. Not recommended on hot sunny days though...either start off at dawn or hope for a cloudy day. It took us about 4.5-5 hours to reach the Keauhou Shelter with full backpacks for a two-nighter. The great part was that there is treatable water and a nicely built pit toilet. The shelter was covered in Carpenter Bees, although they do not sting, they are very busy and loud especially first thing in the morning.
The beach, where we camped out at was beautiful with tidepools all over the place and lots of fish at night to view...but, fishing at the Keauhou Shelter is only allowed by residents of the area. However, fishing is allowed at the Halape Shelter. Large ants roamed the beach, as well as our backpacks, tents, feet, etc.=) nothing got rid of them. Then there are the roaches that come out at night...by the thousands...but, also harmless!
This shelter as an overnighter+ is not recommended for people who don't like bugs...but if you can get over that, it is a beautiful spot! The trail was rugged in spots and marked by lava rock cairns with a few switchbacks.