This article was produced by National Geographic Traveller (UK). It only takes the gentle brush of a hand or slow glide of a boat to trigger the sparkling blue-green light of bioluminescent plankton, ...

The inhabitants of San Juan aren’t early risers. At 9am, the city’s streets are largely empty. In the Plaza Colón, there’s a cockerel scrabbling about in the flower beds. A kiosk selling coffee and ...

Remember those glowing wonders you’d catch in your hands on a warm summer night? Whether you called them fireflies, lightning bugs, glow flies or moon bugs, these beautiful bioluminescent creatures ...

Just beyond Seattle, between national parks and the waters of Puget Sound, Washington’s Kitsap Peninsula offers thrills in every direction. Here’s how to explore this lesser-known getaway. The Kitsap ...