Grzegorz Gawlik on different continents and in different climates. Among other things, he discovered the highest lakes in the world on the Ojos del Salado volcano and found that the highest active volcano in the world is Llullaillaco. In addition, he explored more than 100 other volcanic sites such as geyser fields, geothermal fields, volcanic caves, volcanic deserts, volcanic plateaus, volcanic craters and cones, volcanic rock formations, lava fields. He climbed to about 100 peaks 4-, 5-, 6- and 7-thousand meters in the Himalayas, Andes, Pamir, Caucasus, Cordillera, High Atlas, Tanzania, Borneo and hundreds of lower peaks. During the expeditions, Gawlik explored
Lists of mountains and hills in the British Isles not be considered peaks or mountains under UIAA definitions. With the exception of Pillar Rock, a rocky outcrop on Pillar in the Lake District, the peaks of all of the Nuttalls can be reached without resort to rock climbing. , 302 people are known to have completed the list, though this includes some who did not climb Pillar Rock, which the authors permit. They have also announced that Tinside Rigg and Long Fell (added to the list in 2016) need not be climbed as they are in a restricted area of Warcop Artillery Range. The Wainwrights are mountains or hills