You put it below your sleeping bag.
Sleeping mat or sleeping pad
You use it to carry water when you go on an excursion. Not a bottle.
waterflask or canteen
Something you use to start a fire. There are many of them together in a box.
A match, matches.
You put it on your head to protect it when you are riding a bike or climbing a mountain.
Helmet
A spray you use against mosquitoes or spiders.
Insect repellent
You use it to protect your eyes from too much light.
Sunglasses
Object where you carry all your belongings when you are hiking.
Backpack, rucksack.
You make it to keep warm at night.
Fire
A tool you use to cut wood (not a knife).
An axe
A vehicle people use to go camping. You sleep in it.
Caravan (motorhome)
A book that explains an area, a city, a country...
A guidebook
You use it to see in the night.
A torch (BrE), a flashlight (AmE)
You use it to find the north.
Compass
You use it on your skin after too much sun.
Aftersun
Something you use to cut and that you fold to put away.
Pocket knife
Cuerdas
Ropes
Something you use to start a fire (not matches).
A lighter
How do you say "Botas" in English?
Boots
"Tienda de campaña" in English
Tent
Object in which you sleep when you are camping.
Sleeping bag
You use this to watch things that are very far with your two eyes.
Binoculars
A piece of paper to find your way and spot places.
A map
"Mosquetón" in English
Carabiner
"Harnés" in English
Harness