First things first. Wrapping up is a key aspect of friluftsliv. There's no point getting all wholesome and outdoors-y if you're not a) warmly dressed and b) looking the part. Check out the aptly named Danish brand Rains for stylish shell jackets and coats, and stock up on thermal underlayers such as these SKIMS leggings for extra warmth. Norwegians have an expression that goes: "Det finnes ikke dårlig vær, bare dårlige klær." It roughly translates as: "There is no such thing as bad weather, only bad clothing."

A ritual that anyone can fit into their working-from-home day, a 20-minute walk around the block before you hunch over your computer for the remainder of the sunlight hours. Pop on a podcast such as the hilarious Isolation Tapes or SUITCASE's The Upgrade to brighten your mood, or even better, listen to the sounds of nature. Forget step counting, start counting time spent outside - research suggests we should be aiming for at least 120 minutes a week to boost good health and wellbeing. These wool-blend ski socks by FALKE will come in handy.

One for those crisp, sunny days we all long for in winter (and even bright overcast days to be honest) - wrap up warm and take your lunch outside if you possibly can. Even 10 minutes of sunshine a day will boost those much needed vitamin-D levels, and we all know food tastes better outdoors. If you have a garden or outdoor space, winter barbecues are definitely a thing: togging up and roasting some bangers over coals is so much more atmospheric in freezing weather, anyway.

We appreciate this isn't for everyone, but if you have access to somewhere to go for an icy dip then the endorphin rush is better than any drug, and mental health experts have been talking about the benefits for years. In Finland, there are more than 250 winter-swimming 'centres' open to the public, which often include changing facilities and saunas. While we don't quite have that level of luxury in the UK yet, there are plenty of rivers and lakes to take a plunge. If you're lucky enough to live near any of these wild swimming spots, take advantage during the winter months. Wear warm clothes, and make sure to read plenty of advice on tolerating the cold water if you're new to it.

Norwegians have a saying that goes "Ut på tur, aldri sur" - which translates as "out on a hike, never in a bad mood". While we're not sure we always agree, there's certainly some sense in it. At the weekend, make a day of it and go for a proper walk around your nearest park or nature reserve, if you're lucky enough. Katinka Friis from Visit Denmark explains that the pandemic has seen an increase in hiking in Denmark, too: "During lockdown, many Danes use friluftsliv as a way to get out of the home office and find new ways of exploring their own surroundings. New hiking and biking routes have opened too, for example Istidsruten and the Amargermino." Let's follow suit.

Flasks aren't just for tea or coffee. Oh no, there are all sorts of meals you keep warm. Packing a hunk of crusty sourdough and a flask full of stew is a classic, but you can also use them to keep curry, pasta, warm couscous salads or even wraps warm for hours while you're outside. Check out British start-up Swivlit for an ingenious little flask-cum-slow cooker that can gently cook curries and stews all morning on the go, and then be ready to eat by lunchtime.

While stargazing is normally associated with remote cottages and mountain adventures, you'll spot plenty of twinklers from Morden Hall Park in south London - right at the end of the Northern Line. Its 125 acres of open parkland are perfect for stargazing thanks to a lack of light pollution. In fact, many rural areas in the UK have great stargazing potential - set your sat nav for Dark Sky Reserves such as the Brecon Beacons, Snowdonia and Exmoor national parks. Pack blankets and a good pair of binoculars.