Where's hot now? Wet and wild breaks

Argentina January average high: 32C Lahuen-Co is a new boutique eco lodge and natural spa in Argentina's Lake District. Soak in the thermal waters, float in the heated infinity pool, and go kayaking on Lake Huechulafquen. • i-escape ( i-escape.com ) has a four-night break for two for around £217 a night, including full board, spa access, daily activities and outings, but excluding flights Laos January average high: 28C Explore Laos by water, travelling down the Mekong river on a wooden barge. You'll visit waterfalls, kayak to an ancient cave, journey south to the 4,000 islands, and try to spot the elusive Irrawaddy dolphin. • Responsible Travel (01273 600030, responsibletravel.com ) has a 17-day Laos tour from £1,595pp, including internal flights and guides, departing on 28 January. Flights from Britain can be arranged from £650 return Bali January average high: 29C The beachside Grand Mirage Resort in Tanjung Benoa has a thalassotherapy spa where you can let the seawater wash away any aches and pains from a day spent snorkelling, waterskiing and windsurfing. • Tropical Sky (0845 543 2187, tropicalsky.co.uk ) has seven nights' all-inclusive in January and February from £1,149pp, including flights from Heathrow Egypt February average high: 23C While others head out on motorised dive boats, people on a Swim Trek holiday explore the Red Sea naturally, swimming along the coastline above spectacular underwater scenery and reefs. Daily group swims from a base in Dahab (guided by Mia "The Mermaid") average 4km. You also get some meals and a camel ride. • Swim Trek (01273 739713, swimtrek.com ), from £700pp for a week in February and March including hotel B&B, but excluding flights and trips