30 Free spins bonus code for Atlantis Gold Casino, Treasure Island Jackpots and Mermaids Palace Casino March 30, 2015 30 Free spins bonus Redeem code: OCEAN305 On Reef Encounter Slot ( 5 lines ) Valid on Monday Mar 30th 2015 USA Ok casinoatlantisgold.com treasureislandjackpot.com mermaidspalace.com