Survival Island is a map where you have to survive. It was created by Ashien, but now he is leaving the project. Here is the link http://www.minecraftforum.net/viewtopic.php?f=1034&t=117731Xephos and Honeydew inexplicably found themselves on this desert island just as they were about to save Daisy Duke from the Nether.
Luckily, Skylord Lysander saw their "help!" sign and flew them back to the mainland in his airship, The Celaeno. Skylord Lysander had to remove part of the "help!" sign, so it only said "lp!", however.
There are several different types of "gametypes" you could play on Minecraft. Honeydew and Xephos played 'Iron Man' on Survival Island. The basic way is if one person dies, you have to restart. There are other ways too, like having a base at your spawn, so when you die you have a bit, but you cant sleep anywhere but your spawn.