Currently, there are only two ecolodges in Vietnam: Topas and Cao Son Ecolodge.
While Topas is a very famous, Cao Son is a very new one.
Topas ecolodge is located 25km from Sapa town and offering best view of Ban Ho valley. Topas is also a responsible tour operator for trekking and adventure in Sapa, surround regions.
Full details: www.topas-eco-lodge.com
Cao Son Ecolodge is located 80km from Lao Cai city and offering a an intimate interact with local Flower Hmong and Red Dao tribe. The lodge is built in according to the Tay tribe style. Interestingly, Cao Son Ecolodge also operate daily train ( cao son express) from Hanoi to Lao Cai ( for Cao Son and Sapa) with business and luxury standard.
Tours to Cao Son will be new with tribes markets, trekking, horse riding and caving.
Full details: www.caoson-eco-lodge.com