Bathtub and/or shower tray

A bathing device that is alternatively configurable as a bathtub and as a shower tray, said bathing device comprising:

• a base part, and a side element which completely surrounds a circumference of the base part and is arranged substantially perpendicularly to the base part, the side element being formed in multiple pieces of substantially annular elements, which are tightly fixed against one another, all of the substantially annular elements, which surround the base part, being displaceable relative to one another in a direction of a vertical extent of the bathing device as well as with respect to the base part;
• at least one lifting and lowering mechanism being provided on and articulated to the substantially annular elements, which are displaceable the farthest with respect to the base part;
• the base part being surrounded by a drainage channel having drainage fittings, and the substantially annular elements being retractably arranged in the drainage channel, the drainage channel being formed by two drainage-channel parts, which transition into one another, a lower and an upper drainage-channel part;
• and
• a plurality of support elements, which are formed to support the substantially annular elements, being provided in the lower drainage-channel part, and at least one drain connected to at least one water-drainage pipe being provided in the lower drainage-channel part.