Melissani Cave, on Kefalonia Island in Greece, features a sky-blue lake within the cave. The lake is shallow and clear, and is covered with stones at the bottom. The cave was rediscovered in (In Greek mythology, Melissani was the cave of the nymphs.
For some, running is a fun pastime; for others, it's a tiresome necessity. But no matter where you fall on the running spectrum, if you're striving to become better, then here are seven things you can do to become a better runner.