Unit 1: Key Concepts of Travel and Tourism: • Main Types of Tourism: o Domestic, Inbound, Outbound, International, Day Trips, Short Breaks. • Main Reasons for Travel: o Leisure, Business, Visiting Friends and Relatives, Special Interest Travel • Sustainability in Travel and Tourism: o Environmental impacts, sustainable practices, ecotourism • Characteristics of Travel and Tourism: o Goods and services, intangibility, perishability, seasonality, dynamism, and resilience