I live in Honolulu on Oahu. In my opinion Hawaii isn’t such a great place for CPs, although there are two locations where native Drosera anglica grow. One is the Kanaele Bog (see link on BobZ’s message), which is in an isolated location on the island of Kauai. The other is the Alakai (a’ lah kah’ ee) Swamp (more accurately, a series of bogs), which is in Kokee (koe keh’ ay) State Park, also on the island of Kauai.
The Alakai Swamp is accessible by a hiking trail that is 3.5 miles one way. The Alakai Swamp trail would be quite remarkable, even if it didn’t have D. anglica. The trail starts out in a normal rain forest. But when it gets to the bogs, the trees become miniaturized. It’s at an elevation of a couple of thousand feet, and when I was there, the clouds swept down to ground level, giving it an other-worldly effect. I would have easily gotten lost if it wasn’t for the boardwalk, which also keeps hikers from sinking into the bog. I have to admit that when I hiked Alakai I wasn’t interested in CPs, so I didn’t look for D. anglica plants. But I know they are there. A friend of a friend just went, and he saw some, although they weren’t as prolific as when he went in the summer.
Kokee is on Mt. Waialeale (wye ah’ lay ah’ lay), which is known as the “wettest spot on the earth,” so it rains a lot, although there are some dry days. Also, the Alakai trail has a lot of steps. If you’re not used to going up and down steps, be prepared for sore legs the next day or two. Otherwise, if you visit Kauai, I would highly recommend the Alakai trail. Here’s a site with some information about Kokee State Park: http://www.aloha.net/~inazoo/kokee.htm.