1. El Remanso Wildlife Lodge, Costa Rica

"This eco-lodge is located on Costa Rica's southwest Pacific side of the Osa Peninsula, an area well known as one of the world's most pristine and biodiverse rainforests. The lodge is located halfway between the town of Puerto Jimenez and the famous Corcovado National Park and is included in the Osa National Wildlife Refuge. The lodge has a social area consisting of a restaurant, bar and swimming pool, all of which have great rainforest and ocean views." From Ecobookers.

· elremanso.com, from £59 per night

2. Hostel One66, Singapore

"The unusual Hostel One66, located in a residential area of Singapore, is known locally as the rag and bone hostel - due to its bizarre range of recycled furniture, which includes seats made from old jerry cans and mini-lockers crafted from plastic piping. Guests can stay in a 10-bed dorm or a twin room, and the owners offer free guided nature walks in nearby reserves such as the unbelievably humid Bukit Timah nature reserve." From five green hostels recommended by Jamble Mag.

· hostelone66.com, from £9 per night

3. Keveral Farm, Cornwall

"Keveral Farm is an organic farming community near Looe in Cornwall. They have a small, sheltered campsite in their orchard (maximum of six tents) and they have yurts and tipis for hire. There is a compost toilet and solar shower, and the campsite is a car-free zone. There are plenty of walks in the local area, as well as the beach, and a Monkey sanctuary just over a mile away from Keveral Farm." From five family-friendly camping holidays with children recommended by Eco Street.

· keveral.org, from £4pn per adult for camping, and £2 per child. Vehicles cost £3 per night.

4. Balamku Inn, Mexico

"Balamku is a small hotel that focuses on ecotourism and intimate surroundings. The name, Balamku, means home of the jaguar and the hotel is located in the southern area of the Yucatan peninsula. All of the energy needed to run the hotel is generated by solar panels and wind power. Water conservation is a high priority as is ecofriendly waste management practices and preserving the natural environment. Balamku is a wonderful quiet retreat to get back to nature, watch some birds and renew your soul." From Great Green Travel.

· balamku.com, from £35 per night

5. Venus Albir, Costa Blanca, Spain

"This is the first apart-hotel in Spain to receive European certification as a 'bio hotel'. The main idea behind this tourist complex is the geo/bio construction which included building with local and natural materials such as thermal clay blocks, marble, cork insulation, ecological paints, wooden furniture, cotton sheets and latex mattresses. Solar panels to heat the water, rainwater collectors to water the plants and last but not least: the organic restaurant form part of this eco project." From Treehugger.

· raycons.com/venusalbir, from £31 per night