Well it wasn't exactly a mountain bike ride, per se, but we were on (really uncomfortable) bikes, there was dirt and mud and wildlife, so it counts, damnit! (rode all of 3 miles into the fishing village, which is apparently the only other habitation on this island.)
Made it from Hong Kong to an almost-private Naka Islandisland in Phuket yesterday. Our villa has its own swimming pool and an outdoor bathroom (like camping but more expensive!). And it's their low season here, so we are one of maybe 10 people staying here. Absolutely beautiful.