📍Craters of the Moon NM (Arco), Idaho

Start here before the sun climbs too high—the cool, climate-controlled interior smells faintly of dry sage and volcanic dust, and the topographic relief model gives teens a genuine 'whoa' moment before they've even set foot on lava rock. Rangers here are generous with trail advice and can flag any afternoon storm warnings. Arrive by 9am and you'll have the exhibits and the friendly staff mostly to yourselves; by 11am tour buses start filling the lot.

This is the perfect low-energy way to take in the monument's full drama without demanding much of tired travel legs—seven miles of black lava fields unfurling past the windows, punctuated by short pullouts where teens can hop out, snap photos, and stretch. The Big Craters Pullout offers a sweeping panorama that makes the scale of this place suddenly click. Roll windows down between stops; the silence out here is its own kind of loud.

Arrive by 7:30am and you'll have this otherworldly cinder cone nearly to yourselves, the air still cool and the long shadows dramatic across the black slope. The climb is short but steep and loose underfoot—a genuine adventure that teens tend to love, racing each other to the crater rim where the view opens onto an endless, lifeless, magnificent void. By 9am the parking area starts filling and the pumice gets uncomfortably hot underfoot.

After the cone, this trail feels like a natural next chapter—crunching cinder underfoot as you wind through cinder cone silhouettes and lava tube openings, with ravens occasionally breaking the wind-swept silence. It's moderate enough for teens to range a bit ahead (a nice small taste of autonomy) while parents set the pace behind. Bring extra water; there's zero shade the entire way.

This is the day's most intense stretch—descending into a crater bowl walled in jet-black and rust-red lava, a landscape so bare of vegetation it genuinely startles. Go in the late morning before the midday heat peaks, and treat it as the day's big adventure payoff; teens who found North Crater easy will find this one satisfyingly harder. Take the rim overlook slowly and watch your footing on the fractured rock.

Arrive by 8am for a nearly empty trail and cooler temperatures—perfect timing since this hike's real magic is ducking into the lava tube cave openings, where the air turns suddenly cold and the silence deepens except for wind whistling through the rock. It's the trip's most adventurous, exploratory stop, and teens tend to light up at the chance to scramble into the cave interiors with a flashlight. A satisfying, moody counterpoint to two days of sun-blasted surface terrain.