Panel (1A, 1B) for cladding a surface with a panel core that is enclosed by a flat panel surface, a flat panel lower surface, which is spaced therefrom and parallel thereto, and four panel side surfaces each connecting the panel surface to the panel lower surface, wherein complementary coupling elements (4, 5) are arranged on two opposing side surfaces of the panel in the form of an upper coupling element and a lower coupling element, which are configured in such a way that they enable a first such panel to be coupled to a second such panel by means of a relative movement of the upper coupling element of the first panel towards the lower coupling element of the second panel, the upper coupling element has at its distal end a wedge-shaped insertion element comprising an upper side and a lower side, and the lower coupling element has at its proximal end a insertion receptacle with a mating surface into which, in the coupled state of two panels (1A, 1B), the insertion element is inserted, so that the upper side of the insertion element forms a first coupling section of the coupling elements (4, 5) with the mating surface and the lower side of the insertion element together with the insertion receptacle forms a second coupling section of the coupling elements (4, 5), the upper coupling element has a locking receptacle adjoining the insertion element and the lower coupling element has at its distal end a locking element adjoining the insertion receptacle, which locking element engages in the locking receptacle in the coupled state of two panels (1A, 1B), so that the locking receptacle together with the locking element form a third coupling section of the coupling element (4, 5), wherein the surfaces (13A, 13B) of the insertion receptacle and of the lower side of the insertion element facing one another in the coupled state of two panels (1A, 1B) have mutually complementary wave structures, characterised in that the insertion receptacle has a part extending in the form of a circular section and the circular section-shaped part is adjacent to the mating surface, and in that the panels can be coupled to one another by simply inserting the insertion element into the insertion receptacle and subsequently swivelling the panels relative to one another, the wedge-shaped end of the insertion element sliding along the circular section-shaped part and being guided towards the end position when it is inserted into the insertion receptacle and the upper panel is then pressed down. a panel core that is enclosed by a flat panel surface, a flat panel lower surface, which is spaced therefrom and parallel thereto, and four panel side surfaces each connecting the panel surface to the panel lower surface, wherein complementary coupling elements (4, 5) are arranged on two opposing side surfaces of the panel in the form of an upper coupling element and a lower coupling element, which are configured in such a way that they enable a first such panel to be coupled to a second such panel by means of a relative movement of the upper coupling element of the first panel towards the lower coupling element of the second panel, the upper coupling element has at its distal end a wedge-shaped insertion element comprising an upper side and a lower side, and the lower coupling element has at its proximal end a insertion receptacle with a mating surface into which, in the coupled state of two panels (1A, 1B), the insertion element is inserted, so that the upper side of the insertion element forms a first coupling section of the coupling elements (4, 5) with the mating surface and the lower side of the insertion element together with the insertion receptacle forms a second coupling section of the coupling elements (4, 5), the upper coupling element has a locking receptacle adjoining the insertion element and the lower coupling element has at its distal end a locking element adjoining the insertion receptacle, which locking element engages in the locking receptacle in the coupled state of two panels (1A, 1B), so that the locking receptacle together with the locking element form a third coupling section of the coupling element (4, 5), wherein the surfaces (13A, 13B) of the insertion receptacle and of the lower side of the insertion element facing one another in the coupled state of two panels (1A, 1B) have mutually complementary wave structures, characterised in that the insertion receptacle has a part extending in the form of a circular section and the circular section-shaped part is adjacent to the mating surface, and in that the panels can be coupled to one another by simply inserting the insertion element into the insertion receptacle and subsequently swivelling the panels relative to one another, the wedge-shaped end of the insertion element sliding along the circular section-shaped part and being guided towards the end position when it is inserted into the insertion receptacle and the upper panel is then pressed down.