Ключевые слова: adult, adventure, asian, binoculars, biologist, birdwatching, cheerful, concept, conservationist, discover, diversity, ecologist, ecology, ecosystem, environment, environmental, environmentalist, explore, explorer, handsome, happy, lake, leisure, lifestyle, look at camera, male, man, nature, outdoor, outdoors, paper, people, person, portrait, positive, ranger, researcher, river, scientist, smile, species, survey, technology, thai, tourist, travel, vacation, watching, water, wildlife,