The heart of the Nest consists of 4 Petrified Eggs plus a hatchable Stone Egg, surrounded by one Weathered House, one Rusty Lamp, one Weathered Trunk, some Weathered Trees, Weathered Branchs, Weathered Sticks and Weathered Srhubs. The petrified eggs can be mined for 3 items, which will be either rocks, red, blue, or Purple Gems.
On the rest of the BFB island one can find scattered rocks, flint, twigs and seeds, along with more Weathered shrubs and trees. This island is also where the Regal Scepter is located. There is a single Sinkhole somewhere on the island, which is in fact the exit of the Island.
Mining the sinkhole creates a passage to the caves. This cave system is similar to the Ancient Pig Ruins and Mant Hill, consisting of a series of connected rooms. These rooms can have Mushtrees, Light Flowers, Ferns, Unimportant Pillars, and Stalagmites in them. In one of the rooms there will be a Stone Plug in the middle of the back wall. Mining this rock will trigger a single Earthquake shake and create a passage out of the caves. This passage will lead to one Cave Cleft on any of the other 3 islands, regardless of whether or not it had been explored. The passage can then be entered from the Cave Cleft to take the player back to the BFB's Island again.
- Don't worry if you miss a pickaxe. Every resource needed to make one is available on the island, likely to make sure that players are not trapped on it because they cannot mine the sinkhole.