Daily Mail journalists select and curate the products that feature on our site. If you make a purchase via links on this page we will earn commission - learn moreBritain is currently sweltering under temperatures exceeding 30C, and hordes of holidaymakers have booked staycations in a country poorly equipped to deal with such extreme heat.This week, the Met Office issued a rare red 'danger to life' extreme heat warning for 'significant disruption to daily life'.Temperatures are expected to climb over the next few days to 40C - close to the all-time UK record of 40.3C, set in 2022.Whether you've booked a B&B by the sea or are camping in the countryside, air conditioning is not guaranteed.Fortunately, experts have shared some unconventional methods to battle the heat while travelling. Experts have shared hacks for keeping cool during the most recent heatwaveOn-the-go air conditioningChris Bradshaw, travel expert at AttractionTickets.com, has jetted off to destinations like Orlando and Abu Dhabi where temperatures regularly hit 40C during the summer months.During his travels, Bradshaw has learned some crafty ways to keep cool, including DIY air conditioning that can even be taken on-the-go. 'All you need is a water bottle and a free-standing portable fan,' he explains. 'Fill your water bottle with ice-cold water and - if you have one available to you - pop it in the freezer to make it as cold as possible.'Once frozen, Bradshaw recommends placing it 'in front and slightly to the side of your portable fan'. 'The water bottle will cool the air the fan pushes towards you. This is great for overnight, as you can put this on your bedside table so you'll feel the cool air directly.'For an even more portable option, you can also cool down by using a damp scarf and a handheld fan. Handheld fans are affordable and easy to carry when travelling, priced at just £11.30 on Amazon. 'Before you leave the house, soak the lightweight scarf in cold water,' he says. 'Pop this around your neck to keep you cool and drape the longer end over the fan you're holding, without blocking the motor.''This is going to create a perfect cooling effect as the air moves through the scarf.' Portable Handheld Fan This handy fan can be used as it is, or to create your own on-the-go air conditioning, as Bradshaw explains. It offers three different speeds and is rechargeable, meaning you don't need to worry about lugging batteries around with you on your travels.With over 1,000 reviews, the fan is highly rated on Amazon and is priced at just £11.30. £11.30 Shop Shark ChillPill 3-in-1 Looking to splash some cash on a portable fan? Shark's ChillPill 3-in-1 might be for you. It's a personal cooling system specifically designed for carrying on the go. The Shark ChillPill combines a high-speed fan, evaporative mist and InstaChill cooling technology.It comes with three interchangeable cooling attachments. £119.99 ShopDon't open the windows! Sophie Graham, a Personal Finance Expert at Sunny, shares ways to cut the costs when trying to keep cool. While it might not feel very natural, one of her hacks is simply: keeping the windows closed at certain times of the day. 'While opening windows may seem like an obvious solution, timing is important,' she explains.'Opening windows during the cooler parts of the day, such as early morning or late evening, can help bring cooler air into the home. Making use of natural ventilation can help households stay comfortable without increasing electricity costs.' 'Vein-chilling' hackAnother hack involves utilising a cold bottle of water and your veins - which sounds questionable, but apparently works. One person on Reddit wrote: 'Apply a cool water bottle or anything cool or cold to the wrists or inner elbow, you cool the blood in your veins you cool your body. 'Works every time.' Hydro Flask This sturdy water bottle is the perfect item to stay hydrated and cool down with during hot weather. Its double-walled and vacuum-insulated features mean it can keep beverages cold for up to 24 hours. £25.19 ShopCooling spray While many people splash water on their faces to quickly cool down when out and about, products have been developed that are even more effective.Superdrug sells a Body and Face Instant Cooling Spray for just £5, that promises to have an 'instant cooling effect'.The product is described as being 'suitable for adults and children' and is only 200ml, making it perfect to pop in a backpack on the go. It has good reviews, with one reading: 'Super cooling in the heat, fits in my bag too.'Another raves: 'Used this in Ibiza when it was very very hot my daughter really liked it.'Cooling patches are also an option and 'serve as an instant ice pack,' according to a listing on Amazon. They can be used for fever and headache symptoms, but are also great for cooling down on a hot summer day. Cooling Patches Cooling patches offer another way to bring your temperature down on a hot day. A pack of 20 can be found on Amazon for just £7.99. £7.99 ShopEating watermelonOne experienced traveller on Reddit explained that 'drinking water or sports drinks isn't enough'. Instead, they insisted, 'You need to "eat" your hydration as it takes time for the body to absorb the liquids.'Think of today's hydration as if it's for tomorrow.'In order to do so, the user recommended eating fruits that have a high water content, such as watermelon or grapes. Electrolyte sachetsElectrolyte sachets are another good method of rehydrating during a hot spell.Plus, they're cheap, and easily fit in your bag. A pack of eight Vidrate Electrolytes Powder can be bagged for just £7.16 on Amazon.The product promises it 'increases your water intake and turns it into a delightful experience'. Vidrate Electrolytes Powder Small but effective, Vidrate's Electrolytes Powder sachets are easy to carry with you on your travels.They are available in a range of different flavours and are a simple way to increase your water intake on a hot day. £7.16 ShopTurn off appliancesCommon household items such as TVs and game consoles can also make the room feel hotter when left on, Graham reveals. She explains: 'Many household appliances generate heat while in use, even if people don't immediately notice it. Televisions, computers, games consoles and kitchen appliances can all contribute to higher indoor temperatures. 'Switching off devices when they're not needed can help keep rooms cooler while also reducing electricity consumption and lowering household bills.' Ovens and hobs also add to the heat and can 'significantly increase the temperature inside a home, particularly in smaller kitchens or flats'.Graham recommends, 'On especially hot days, preparing cold meals or foods that require minimal cooking can help prevent excess heat build-up. As an added benefit, using cooking appliances less frequently can also help reduce energy costs.'Want to holiday like a travel expert? Get free access to this subscriber article about the best Greek islands to visit (and the worst ones to avoid) when you sign up HERE to the Escape newsletter