Las Vegas · With kids

Five acres of indoor rides under a pink dome, air-conditioned all summer, with free circus acts nearby. Ages four to twelve, pay per ride or by band.

At Mandalay Bay, a walkthrough tunnel, a Komodo dragon and a touch pool. An hour and a half, best for ages three to ten.

Nine themed levels downtown next to the Smith Center, aimed squarely at ages two to nine, with a water play floor for the hottest days.

Twenty minutes west, a thirteen-mile scenic loop with short trails to petroglyphs and slot canyons. Timed entry in the cooler months; ages six upwards walk it.

Children may cross a casino floor but not linger, so pick hotels with a side entrance. Summer tops 42°C — pools by day, Strip walking after dark.