After cheiferik abandoned work on the original map(http://terraria.curseforge.com/maps/colbariaisland/), I decided to update it to Terraria 1.3 and add all the new content(or at least as most of it.) Here is the original description:
"Colbaria is a island full of both adventure and danger. Explore many full fleshed out unique biomes all hiding secrets. From high, icy mountains, to barren monster filled deserts to dark mysterious jungles. The map includes 5 dungeons all together. Including a hidden water temple and a hardmode keymold dungeon. There are things to do in each stage of the game from the first day to the end of hardmode. In many ways this map is harder. Tougher terrain, deadlier dungeons and better protected loot. In many ways it is easier. Loot is much more frequent and has much better modifiers then a regular map. If your looking for a fun filled adventure map this is the one for you!"
I have updated it so far to include a new *underground* desert biome, new items in chests, upgraded a few dungeons, and added several other new features. I plan to add another dungeon soon enough.
- Simply move the downloaded file into your Terraria world folder usually located in Documents\MyGames\Terraria and then load up Terraria and play!