Things to pack on a day hike
Navigation equipment
2L hydration bladder
500ml soft flask/s
Sunscreen
Lip balm
Electrolytes
Energy gels
Ziplock bags
High-pitch whistle
Sandwiches
OSM bars
Trail mix
Extra food
Merino layer
Waterproof jacket
Beanie/sunhat
Headlamp
Battery pack
Toilet paper
Small trowel
Multi-tool
LifeStraw
Lighter
Fire starter
First aid kit
Distress beacon
Trekking poles