Gawain High Noon powers

So, Gawain does, venturing deep into the graveyard until he comes to a church with a hidden tomb. Gawain ventures down into it until he gets to a tomb, sealed with a giant rock. Which would suck but there was one issue. It was HIGH NOON! Gawain had the power to grow up to six times as strong as a normal person as the sun approached noon, so he just super-strength chucked the rock out of the way.

Arthurian Myths Retold pg 101-102.