Bed for us at rear of office, conserving holidays

• Safaris without guns, say
• Environmentalists' excursions
• Trips to environmentally protected areas
• Trips for nature lovers
• Trips through rain forests, maybe
• Trips to support conservation
• Nature excursions
• Trips to wildlife areas, say

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