Provide your guinea pigs with secure accommodation that is large enough for them all to exercise in and high enough for them to stand up fully on their back legs. You should provide both a large exercise area and a secure shelter where your guinea pigs can rest, feel safe and are protected from predators and extremes of weather and temperature. Ensure all areas of your guinea pigs' environment are well ventilated, dry and draught-free. Clean the guinea pigs' accommodation regularly, to ensure they have clean, dry bedding. Provide plenty of horizontal space with pipes and shelters to encourage your guinea pigs to exercise. Allow your guinea pigs to exercise regularly; ideally they should have free access to their exercise area. If housed outdoors, the accommodation should be sheltered from direct sun and the prevailing wind direction. Ideally, when temperatures drop to below 15°C guinea pigs should be housed indoors. If housed indoors, the accommodation should be away from direct sources of heat such as radiators and sunny windows and protected from draughts. A room temperature of 17-20°C is ideal. Provide untreated wooden toys to chew, such as fruit tree or willow sticks. Avoid toys made of plastic, as they may harm your guinea pigs if chewed and swallowed.