An eco-hotel is designed for environmental friendliness and sustainability. Key criteria include:
- Reliance on the natural environment is inherent, as these hotels utilize their surroundings for resources.
- Ecological sustainability is a fundamental principle, ensuring operations are environmentally responsible and have minimal impact.
- Demonstrated contribution to conservation is a significant aspect, with eco-hotels actively engaging in environmental preservation.
Conversely, Negligible economic return to the community is NOT a characteristic. Eco-hotels typically aim to benefit the local economy through sustainable development support and job creation.
Therefore, the correct answer is Negligible economic return to the community.