This spleef arena is used to play spleef on the Level Up Minecraft server in which I owned.
The spleef arena took about 3 hours to build with some help of WorldEdit. The arena includes a ref box were a lever is to drop the wool on both red and blue side to allow players to get into the arena and start spleefing.

Once you have been eliminated, you will drop into the water below, then be directed to land were you can right click a warp sign to take you back to the spleef spawn.

You can see the arena by joining the server IP: mc.leveluptimes.com and using the /warp spleef command.

The servers Planet Minecraft page can be found here: www.planetminecraft.com/server/level-up-minecraft-pvp-survival-donation-ranks-lwc-australian/

Level Up Minecraft Website: www.levelupminecraft.com/