A quick splash, a sleek fin cutting through the surface, and then—gone. Dolphins don’t perform on cue, but when you spot one, even for a moment, it truly does make the ocean feel alive. Some places ...

A photographer gets too close to a humpback whale. Swimming alongside wild dolphins or whales may feel like a once-in-a-lifetime bucket-list experience. The glossy images and the awe-inspiring reels ...