Definition of "sunbaking"
(Australia) The action of tanning in the sun; sunbathing.
Quotations
"Well, I mean to say, supposing a man wanted a bit of a holiday...quiet time away from everybody. This is the very place. Bonzer beach for swimming, sunbaking. Bonzer shanty like this to loaf in; what more does a man want?"
1938, Norman Lindsay, Age of Consent, 1st Australian edition, Sydney, N.S.W.: Ure Smith, published 1962, page 75