Don't Show Up Unprepared — What to Pack for Any National Park
National parks are remote, weather is unpredictable, and park stores carry limited inventory at premium prices. Whether you're day hiking or spending a week, this packing list covers what you actually need — not what outdoor brands want to sell you.
The Non-Negotiable Essentials
These items go in your pack for every park, every season, every trip length:
- Water — 1 liter per person per 2 hours of hiking minimum. A hydration reservoir is more convenient than bottles.
- Sun protection — SPF 50+ sunscreen, UPF-rated sun hat, and sunglasses. UV increases 4-5% per 1,000 feet of elevation.
- Layers — Mountain weather changes fast. A lightweight fleece and wind shell take almost no space but prevent hypothermia.
- Navigation — Downloaded offline maps (cell service is unreliable in most parks). A backup power bank is essential.
- First aid basics — Blister kit, ibuprofen, antihistamine, bandages, antiseptic wipes.
- Flashlight or headlamp — Even for day hikes. Trails take longer than expected.
Clothing by Season
Summer (June - August)
- Lightweight moisture-wicking shirts (no cotton)
- Convertible hiking pants — zip off to shorts when warm
- Wide-brim sun hat with chin strap (baseball caps don't protect ears/neck)
- Lightweight hiking socks (merino wool, no cotton)
- Rain shell — afternoon thunderstorms are common in western parks July-September
Fall (September - November)
- Base layer (merino wool or synthetic)
- Insulating mid-layer (fleece or lightweight down)
- Windproof/waterproof shell
- Waterproof hiking boots — trails get muddy and streams are cold
- Warm hat and gloves — mornings at elevation drop below freezing even in September
- Traction devices (Yaktrax or Microspikes) for icy trails at high elevation
Winter (December - March)
- Insulated parka or heavy down jacket
- Insulated waterproof boots (300g Thinsulate minimum)
- Base + mid + shell layering system for active hiking
- Snow gaiters for deep snow
- Hand and toe warmers
- Snowshoes for parks with deep snowpack
Spring (April - May)
- Waterproof everything — spring means mud, rain, and snowmelt streams
- Gaiters to keep mud and debris out of boots
- Packable down jacket — mornings are cold, afternoons warm
- Extra socks — you will get wet feet
Park-Specific Gear
Desert parks (Death Valley, Joshua Tree, Canyonlands):
- 3+ liters of water capacity per person
- Electrolyte tablets or powder
- Shade canopy or umbrella for sun exposure
- Long-sleeve UPF shirt (better than sunscreen in extreme heat)
- Bear spray (required in grizzly country — buy or rent at park entrances)
- Trekking poles for steep descents
- Down jacket for afternoon at elevation
- Water shoes for tide pooling and rocky shorelines
- Rain jacket — coastal weather shifts fast
- Zip-lock bags for electronics (salt spray kills phones)
- Dry bag for Narrows-type hikes
- Neoprene socks for cold water wading
- Wide-mouth water bottles (easier to fill from streams)
Day Hike Pack Checklist
For a 4-8 hour day hike, your pack should contain:
- Water (2L minimum)
- Lunch + snacks (high calorie: nuts, bars, jerky)
- Sun protection (hat, sunscreen, sunglasses)
- Rain shell
- Warm layer
- First aid kit
- Headlamp
- Navigation (phone + offline maps + paper map)
- Trekking poles (optional but recommended for descents)
- Bug spray (essential in Great Smoky Mountains, Acadia, Everglades)
What NOT to Bring
- Cotton clothing — "cotton kills" is a mantra for a reason. It holds moisture and loses insulation when wet.
- Expensive camera equipment unless you're a serious photographer — your phone is sufficient for most visitors
- Perfumed products — they attract bears and insects
- Bluetooth speakers — this is nature, not your living room
- Excessive food — a day's worth, not a week's
Pack smart and hit the trail. Our complete national park rankings will help you choose your next destination.
Park-Specific Packing Additions
Different parks demand different gear. Add these items to your base packing list depending on your destination:
Desert parks (Death Valley, Joshua Tree, Arches, Canyonlands):
- 3+ liter water capacity per person per day
- Electrolyte tablets or powder
- Wide-brim sun hat with neck coverage
- Long-sleeve UPF 50 shirt (better than sunscreen in extreme heat)
- Lip balm with SPF
- Bear spray (required in grizzly country)
- Rain shell with hood (afternoon thunderstorms are daily July-August)
- Warm base and mid layers (40°F mornings even in July)
- Trekking poles for descents
- Waterproof rain jacket (not water-resistant — coastal parks receive 60-140 inches of rain)
- Water shoes for tide pooling
- Dry bags for electronics book coastal lodging
- Insulated boots rated to -20°F
- Hand and toe warmers
- Snow gaiters
- Cross-country skis or snowshoes