Is Mirissa whale watching guaranteed.

Because you are searching for highly migratory wild animals in the open ocean absolutely nothing is guaranteed. However during the peak winter season the success rate for spotting blue whales is incredibly high often exceeding 90 percent. Highly reputable operators like Raja and the Whales will not give you a cash refund if you miss them but they will very generously offer you a completely free ticket to join the boat again the very next day to try your luck a second time.