Alpinistic

One of the most complex forms of tourism is alpinism, the opportunities for which are truly unlimited in the USSR. The six- and seven-thousand meter summits of the Pamir-Alay and the Central Tyan'-Shan', the five-thousand meter summits of the Caucasus, the very high snow-capped mountains of Kamchatka, the multitude of summits of alpinistic class exceeding 4,000 meters in the mountains of the Altay, the Northern and Western Tyan'-Shan'—such is the field of activity for summit-climbing alpinists.

Source: wiktionary

If we continue further east, we come to a region where we find all the modern forms of alpinistic tourism and where alpinism really started a larger scale tourism: the Himalayas.

Source: wiktionary

Every time after that detectives questioned someone "how he looked like" the answer was "medium tall, black jacket, black pants, some uncertain alpinistic accessories, sure he had some kind of alpinistic equipment, not sure what was that exactly".

Source: wiktionary