Environmentalists' excursions

• Trips to the Galápagos, e.g
• Trips to wildlife areas, say
• Trips to support conservation
• Nature excursions
• Bed for us at rear of office, conserving holidays
• Trips to environmentally protected areas
• Trips for nature lovers
• Trips through rain forests, maybe

Wiktionary Word definitions in Wiktionary
n. (plural of ecotour English)