What hobbies did M.C. Escher have?

M.C. Escher had a variety of hobbies, including drawing, printmaking, and exploring mathematical concepts. He was particularly interested in tessellations and geometric patterns, which heavily influenced his artwork. Additionally, he enjoyed nature, often sketching landscapes and architectural details during his travels. Escher's fascination with symmetry and perspective is reflected in both his hobbies and his artistic creations.