The dolphin and whale watching in Mirissa is a unique experience and appreciated worldwide. The best season for whale watching is November to April. During the rest of the year the water remains too rough due to Monsoon. There are huge choices in Whale watching tour companies in Mirissa. All of them charge more or less same price. The cost is approximately 600 Sri Lankan Rupees. The boats depart from the shore from 7 am. Try to reach there by 6'o clock in the morning so you can get a rooftop front seat. I could spot a fin whale, a blue whale and groups of dolphins jumping and squeaking in ocean.