I found a cool seed that is survival island! There are two islands, you start with two trees and there are two dungeons right nest to each other in the vast cavern. Sorry I have no pictures atm, but it is still is an amazing seed. You spawn on the island with no trees, but if you explore you can can see the second island with the dungeons and the trees.
Seed: 761901369131881790
Have fun by yourself or with friends.
If you like this map please comment on why you like it.