This map contains the new features added in the 1.2.13.10 beta. These include Stripped Logs, Drowned and the Trident! Sorry there are no pictures.
NOTE: I don't know how the Trident Enchantments World was created. The creator probably edited the level.dat file, because enchanting table, anvil and commands all didn't work. But still, enjoy!
https://www.mediafire.com/file/8hgzej8t109qgzp/121310beta.mcworld