Basking in the sun.
in some older classifications considered the family of the basking sharks
basking
v. 晒太阳, 取暖( bask的现在分词 ); 对…感到乐趣; 因他人的功绩而出名; 仰仗…的余泽
basking shark
n. 姥鲛, 姥鲨