Happy Whale Week! National marine sanctuaries are safe havens for humpback whales. Each winter, thousands of humpback whales migrate to Hawaiian Islands Humpback Whale National Marine Sanctuary to mate, calve, and raise their young, while each summer, others travel to Stellwagen Bank National Marine Sanctuary to feed. These whales can also be spotted in many sanctuaries in between! These protected areas are spectacular places to whale watch -- but always be sure to give the whales plenty of space.