Best national parks in the United States

>- If you have one park in you, make it the Grand Canyon South Rim: a 2-night stay, a walk along the rim at sunrise, and no hiking required to see the thing you came for. If you have a car and a week, the Las Vegas loop (Zion, Bryce Canyon, Grand Canyon) gives you three parks without a long haul between them.

>- Yosemite is the pick for granite walls and waterfalls, best in May–June when the falls run, and it needs a lodging or entry reservation in peak season. Yellowstone is the wildlife and geyser park: 3 nights minimum, because the loop road alone is about 230 km and bison jams eat time. Glacier and Denali reward people who plan far ahead; Great Smoky Mountains and Acadia are the easiest big parks to reach from the East Coast.

>- This page is for travellers planning a first or second US trip who want one or two parks rather than a checklist. It assumes you can drive: outside a handful of shuttle-served areas, a car is the only practical way in. International visitors pay the same entry fees as residents; there is no separate foreign price.

>- If you are travelling with children, the Grand Canyon rim, Zion's shuttle valley and Great Smoky Mountains are the least demanding. If you want backcountry, Denali, Glacier and the Yosemite high country need permits and bear awareness. If you are coming from Canada, Australia or New Zealand, the comparison pages below cover the parks at home.

>- Step 1: choose a region, not a list. Southwest (Las Vegas gateway), California (San Francisco or Los Angeles gateway), Rocky Mountains (Salt Lake City, Denver or Jackson), Alaska (Anchorage). Flying between park regions costs a day each time.

>- Step 2: fix the nights before the flights. Two nights at a rim or valley park means one full day on the ground; three nights means two. Anything less and you are mostly driving.

>- Step 3: book in-park lodging or a gateway town early. In-park rooms for June–August often go 6–12 months out; gateway towns such as Springdale (Zion), Tusayan (Grand Canyon), West Yellowstone and Gardiner hold more rooms and are cheaper.

>- Step 4: check reservation rules for your dates. Some parks run timed-entry or vehicle reservations in peak season, and Yosemite has run a peak-hours reservation system in recent years. Rules change each year, so confirm on the park's official page before you book flights.

>- Step 5: build the day around light and crowds. Be at the viewpoint before 8am or after 5pm; midday is for driving, visitor centres and shade. Carry water — 3–4 litres per person per day in desert parks — and never rely on a phone signal inside the park.

>- Entry: most large parks charge about US$35 per private vehicle for 7 days (2026 estimate); per-person entry applies if you arrive on foot or by bike. The America the Beautiful annual pass is about US$80 and covers entry to federal fee areas for 12 months (2026 estimate). Great Smoky Mountains has no entry fee.

>- Lodging: in-park rooms commonly run US$150–350 a night in peak season (2026 estimate); gateway-town motels are often US$100–250. Campgrounds are far cheaper but sell out first. Food inside parks is limited and priced accordingly, so plan a grocery stop.

>- Time: allow 2 nights for a rim or valley park, 3 for Yellowstone or Glacier, and a full travel day on each side if you are flying in. A 10-day Las Vegas loop covering Zion, Bryce and the Grand Canyon is a realistic first parks trip; a 14-day California route can add Yosemite to San Francisco and Los Angeles.

>- Seasons close things. Glacier's Going-to-the-Sun Road is usually fully open only from late June or July into September (check). Denali's park road has limited private-vehicle access; most visitors use the park bus. Yellowstone's interior roads close to cars in winter except for oversnow travel.

>- Reservations and permits. Timed entry, vehicle reservations, Half Dome permits, Angels Landing permits and backcountry permits all exist and all change. Check the specific park's official page for your dates; do not rely on last year's rule.

>- Altitude and heat. Grand Canyon South Rim sits at about 2,100 m and the inner canyon gets far hotter than the rim; Bryce is higher still. In summer, hike early, carry more water than you think you need, and turn around before you feel unwell.

>- Weather and fire. Wildfire smoke, flash floods in slot canyons and monsoon storms in the Southwest can close trails or roads with little notice. Have a second day in the plan, not a second park.

>- Short on time from the East Coast: Great Smoky Mountains (free, drive-in) or Acadia (fly to Boston, drive about 4.5 hours — check).

>- One big landscape, minimal hiking: Grand Canyon South Rim.

>- Waterfalls and granite: Yosemite, May–June.

>- Wildlife and geysers: Yellowstone, June–September.

>- A driving loop with several parks: Las Vegas → Zion → Bryce Canyon → Grand Canyon.

>- Wilderness and a long trip: Denali, June–August.