It’s such a simple thing to do that most travelers probably don’t even notice it.

The Atacama property of explora has just joined Tswalu Kalahari and Nimmo Bay Resort in Canada in cutting down on plastic. Tswalu bottles its water in glass bottles that it reuses, avoiding the transport of bottled water the hundreds of miles every day, and Nimmo Bay provides its guests with stainless steel bottles to refill.

Now explora is also giving guests a reusable stainless steel water container to use during their trip to the company’s lodges at the Atacama, Patagonia, and Easter Island.

Some of these properties, however, do still provide guests with the option of bottled water too.

“Efficient use of precious water has long been a priority for explora, which employs a purification plant at each lodge to treat water with ultraviolet light,” explora said in a statement.

In Patagonia, Hotel Salto Chico draws from the PehoƩ River. On volcanic Easter Island, Hotel Posada de Mike Rapu taps an underground well. Water is a bit trickier in the bone-dry Atacama: Water drawn from 200-meter well by Hotel de Larache goes through a triple purification process including demineralization and ultraviolet light.