With so many species of whales and dolphins surrounding this archipelago, this is one of the best places in the world to witness these marine mammals up close, with sightings on 99 percent of whale watching trips to the sea. March to June is the peak whale watching season in the Azores, with spring and early summer the best time to spot the blue whale the mightiest mammal on the planet. However, there are marine mammals to be seen all year round.For detailed information on the event - please click through to their website listed to the left.