The road is not private, so everyone can drive here. It can be a bit rough at the end down the steep section after heavy rain, so if you don't have a 4x4 it is recommended that you park near cache #5 and walk the last section. You can also park at the ferry terminal and do this as a hike. On the way you can see lots of animals, like the howler monkeys, capuchin monkeys, armadillos, iguanas and birds. There is hardly any traffic on this road, so it will be a peaceful walk.
If you have made it all the way to cache #8 you are probably thirsty ;o) Just after cache #8 there is a road to your left going down to the water. If you walk down here you'll find the "pulperia". For those new to Costa Rica a "pulperia" is a small kiosk in a private house where they sell some very basic supplies like canned food, sugar, rize, soft drinks, beer, water etc
Make sure to bring water, and put on mosquito repellent.
There is also a very good local fish-restaurant at the beginning of the trail near cache #1, it is open from 8am to 4pm.
All the caches on the powertrail are easy park and grab. Enjoy!
BYP