Summer is a time for rest and vacation. During this season, people often choose various activities and trips to relax, explore new places, and enjoy the warm weather. There are greater opportunities to engage in different activities – relaxing by the sea, lakes, traveling to the mountains, exploring the culture and unique nature of foreign countries, visiting historically significant sites, or simply enjoying the pleasures of wellness resorts and spas. This is summer tourism, which each of us understands in our own way. However, it is important to remember that leisure or other recreational activities should not have a negative impact on the environment, and tourism should be sustainable, no matter which part of the world we are vacationing in. To achieve this goal, we need to strive to minimally impact the environment, support local communities, and preserve natural and cultural resources for future generations. The main principles of sustainable tourism allow us to enjoy vacations while also contributing to the preservation of the environment and culture: