cool. For the forests, make a tree. Go into the tree editor and make leaf size 1 and, make the leaf number 20. Select mangrow or bamboo from the leaf menu. Make the leaves a nice deep green. Now for the trunk...make distribution close to 100, and low gravity. Go into the trunk material, and make it completely transparent (volume = white, diffuse and ambience =white, transparency set at 100, everything else set to zero.) Then exit the tree lab... Size the tree so that the leaves will cover the right area, and then squish the tree from top to bottom until the leaves are fairly close together. Then sink the tree ino the island until just the leaves poke up.