Try "Kholdston" without the quotes and capital K. Lots of clay, big ocean, a dungeon underneath a clay deposit under water with a cave that extends to the lava layer under the dungeon at -176, 172. Cave requires a few ladders to get into shaft entry. Plenty of wood as well as other things to find. Have fun!
I heard there will be HUGE oceans in the next update.
"datrandomseed"
for a seed ...