Where do whales give birth?

North Pacific humpback whales give birth in warm, shallow tropical waters — primarily in Hawaii, with smaller numbers off Mexico's Revillagigedo Islands and Japan. Hawaii's main breeding and calving ground is the Au'au Channel between Maui, Molokai, and Lanai, where water depths of 60–100 feet and temperatures of 75-80°F create ideal conditions. Mothers give birth to calves averaging 13-14 feet long and 1-2 tons. The calves are born tail-first (unlike land mammals) and immediately guided to the surface for their first breath. The Hawaiian Islands Humpback Whale National Marine Sanctuary covers the primary birthing areas. Whale watching tours from Maui with Pacific Whale Foundation (0–170) frequently encounter mother-calf pairs from January through March — one of the most moving wildlife encounters available in the US. Calves stay with their mothers for approximately one year before independence.