As Marino Ballena National Park is the best place to go humpback whale watching in Costa Rica due to a longer season, you cannot skip out on a whale watching tour! The best months to see humpback whales are December to mid March and then July to October. Peak months are August and September.
You will also have chances to see other marine wildlife like dolphins, turtles, manta rays and other whales.
Whale watching tours are half day, in the morning or afternoon and depart from the national park.