StarCraft 2 - Burning Tide custom map released

Blizzard has just released the first custom map for StarCraft 2 with the name of Burning Tide.  Here are some of the details on the custom map:

Featuring timed lava surges and collectable mineral caches, Burning Tide is a 3v3 map that combines several thematic elements from the epic single-player campaign mission "The Devil's Playground." Like the campaign mission, the goal of this game is greed, and the first team to reach the specified resource total wins! Players hoping to achieve victory on this map will need to work together, carefully managing their team's unit production and safeguarding their vulnerable workers as they defend against enemy forces.

You can play the custom map by simply opening a custom game and selecting the map.  Nothing to download or install.