Plugin Skygrid Teleport 
https://dev.bukkit.org/bukkit-plugins/ultimate-skygrid-2/
Description: This plugin is made directly for users wanting an updated teleportation plugin for SkyGrid Maps. It allows the users with the skygrid.begin permission to teleport to a random block that isn't water or lava in SkyGrid from spawn! This Plugin works for all SkyGrid worlds, it doesn't depend on the world name. Please send tickets about issues, and feature requests.
We can only use the plugin Ultimate SkyGrid with that other plugin!
