My journey to a firefly sanctuary in Bali revealed a striking truth: the artificial light destroying the firefly’s glow is ...

Expedition leaders are retreating from Nepal's second-most-popular 8,000-meter peak after heavy snowfall and a deadly avalanche battered the mountain. Four climbers died during the 2026 season, which ...

A midnight fall down a steep, loose slope required Grand County Search and Rescue to deploy complex rope systems—and an innovative aerial lighting setup.

She donned the crop-cut, hole-punched long sleeve and declared, “It’s chic as hell.” Another influencer wondered: “Am I out of line for thinking this thing looks pretty sick?” A third quipped: ...

Apple claims its new sensors make the Ultra 4 the most accurate heart rate wearable on the market. We tried it out.

The new iPhone comes with aperture control, a vintage camera feature that gives you more control of your images.

Two weeks after the elite Canadian trail runner vanished during a record recon run in the Alps, her family honors her legacy ...

Put a team together for the Gravelanza Run Crew Battle. In this event, mixed-gender teams of six take on a 1.6-mile lap (the total time of all members of your crew creates your finishing time). The ...

A heart-rate limit of 140 is outdated. Still, the 2019 guidelines remain cautious. “Vigorous” exercise, they suggest, should top out at around 169 beats per minute for women 29 and younger, and 162 ...

Heaps of hikers and tons of trail runners are on sale at REI right now. These are our gear team’s 13 favorites.

In Mexico’s volcanic Revillagigedo archipelago, 20-foot giant manta rays are famous for their curiosity and seeking out human ...