Time zones
Las Vegas is PDT. Arizona does NOT observe DST, so practically it's the same as Vegas in October.
BUT the Navajo Nation (which includes Page) DOES observe DST — Page runs 1 hour ahead of Vegas.
Utah (Bryce, Zion) is MDT — 1 hour ahead of Vegas.
Set Antelope Canyon tour times to Page local time.
The park pass
America the Beautiful Pass — $80, buy at first park entrance. Covers Grand Canyon, Bryce, Zion, and any US national park for 12 months. Versus paying $35 × 3 = $105, it's cheaper and you get a year of NPS access.
Weather snapshot
Vegas: 24–28°C day, 14°C night
Grand Canyon (S Rim): 18°C / 2°C · 2,100 m
Page / Lake Powell: 22°C / 10°C
Bryce: 16°C / -1°C · 2,400 m · COLD mornings
Zion: 21°C / 7°C · fall colors at peak
Packing essentials
Layers — ~20°C swings between dawn and afternoon
Hiking shoes with grip for slickrock
Headlamp for sunrise hikes
Refillable water bottles — most parks have fill stations
Sunscreen + sunglasses — high elevation UV is intense
Power bank for the long photo days
The vehicle
✓ Booked: a full-size 7-seater SUV, picked up at Resorts World (Oct 21–28). Perfect for 6 adults + carry-ons on the loop.
Packing the SUV: 6 carry-ons fit fine, but keep day packs, water, and jackets accessible — you'll want them at every trailhead and viewpoint.
Fuel: fill up in Page before driving north, and in Mesquite/St. George on the way back — gas is cheaper there than in the parks or on the Strip.
One driver rule: confirm which drivers are on the rental agreement before anyone else takes the wheel — driving off-contract voids insurance.
Cash & cards
Antelope Canyon tours often want cash tips for Navajo guides ($10–20/person).
Horseshoe Bend parking is $10 cash or card.
Carry $100–200 cash per couple for incidentals.