Out there, well kitted.

Waterproof jacket and trousers

Spare warm layer

Map, compass and a charged phone

Water and a flask

Lunch and a few snacks

Head torch and spare batteries

First aid kit and blister plasters

Hat, gloves and sunglasses

Tent and spare pegs

Sleeping bag and mat

Stove, fuel and lighter

Water filter or purification

Food for the evening and morning

Head torch and spare batteries

Map, compass and a charged phone

First aid kit and repair kit

Insulated jacket and warm layers

Waterproof shell and trousers

Insulated boots and spare socks

Hat, gloves and goggles

Head torch and spare batteries

Flask and high-energy food

Map, compass and a charged phone

Emergency shelter and first aid kit