Ключевые слова: activity, adrenaline, adventure, alone, altitude, business, challenge, cliff, climb, climber, climbing, clouds, communication, conditions, difficult, effort, employment, evening, explore, extreme, fearless, free, freedom, high, hiking, hill, man, mobile, mountain, nature, negotiation, outdoor, peak, persistence, person, phone, risk, sport, sunset, target, telephone, tenacity, top, vertical, wild, work,