This is 1-6 Sunny Shores (Hooray for cheesy names). Its the only beach level in the game and one of three water levels.
Its main gimmick is based on the tides with in this section water moving up and down putting area's out of mario's reach depending on the tide.

The axes will be invisible in-game and break three of the stones revealing a star coin.
For a bigger picture click here
http://imgur.com/a/GvA8N
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