For an adventure like this, the first piece of advice I can give is to choose your equipment carefully.
I’d studied the weather trends in Iceland at this time of year and the forecast during my stay there, as I always do before heading off, and I already had in mind that it was going to be very cold, especially at night.
So here's a quick recap of the gear I brought with me: a tent canvas (make sure you check which time of year it’s intended for), a sleeping bag (
the same again - check the temperature level likely when you get there and choose your sleeping bag accordingly; little tips: always base your choice on the comfort temperature of your sleeping bag, which
may seem obvious but it’ll make all the difference for your expeditions).
I always wear three layers for upper body clothing (usually a technical T-shirt, fleece and parka), add waterproof, warm pants, socks suitable for hiking, gloves and, maybe most importantly, good boots that provide effective waterproofing, both breathable and warm, and suitable for snow.
Preparing the equipment is always a critical part of planning my adventures, and I think about it well in advance, and when the time comes, I can easily
devote a whole day to it.
This gives me the reassurance my trip will go well, that I’ll be able to deal with any unforeseen events and enjoy the adventure with peace of mind.