From that Oxford English Dictionary.

walk

• verb 1 move at a regular and fairly slow pace by lifting and setting down each foot in turn. 2 travel over (a route or area) on foot. 3 guide, accompany, or escort (someone) on foot. 4 take (a dog) out for exercise. 5 N. Amer. informal be released from suspicion or from a charge.

• noun 1 a journey on foot, especially for pleasure or exercise. 2 an unhurried rate of movement on foot. 3 a person’s manner of walking. 4 a route or path for walking.

— PHRASES walk (all) over informal 1 treat in a thoughtless and exploitative manner. 2 defeat easily. walk it informal achieve a victory easily. walk off with (or away with) informal 1 steal. 2 win. walk of life the position within society that someone holds. walk out 1 depart suddenly or angrily. 2 Brit. informal, dated go for walks in courtship.

— DERIVATIVES walkable adjective.

— ORIGIN Old English, roll, toss, also wander.

art1

• noun 1 the expression of creative skill through a visual medium such as painting or sculpture. 2 the product of such a process; paintings, drawings, and sculpture collectively. 3 (the arts) the various branches of creative activity, such as painting, music, and drama. 4 (arts) subjects of study primarily concerned with human culture (as contrasted with scientific or technical subjects). 5 a skill: the art of conversation.

— ORIGIN Latin ars.

So walking art is something like this:

a journey on foot, especially for a skill: the art of conversation

an unhurried rate of movement on foot through a visual medium such as painting or subjects of study primarily concerned with human culture (as contrasted with scientific or technical subjects)

a person’s manner of walking the product of such a process; paintings, drawings, and sculpture collectively
a route or path for walking the various branches of creative activity, such as painting, music, and drama

I deserve Tea Tags.

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