Very easily set up! Masking tape is all you really need – make a line on the ground and have fun! Ask your child to walk to the end only on the line. Try more lines at different angles, spirals, and zig-zags.
See who can walk the line the fastest, walk it heel-to-toe, walk it backwards, with eyes closed (take their socks off so they can feel the line), and jump down the line. If you want, you can certainly lay down and secure 2×4 pieces of wood as real balance beams!