Apparently Jim Harbaugh’s competitive spirit carries through well into the offseason.

Harbaugh faced off in a pushup challenge against Siku, a Pacific walrus, at Six Flags Discovery Kingdom in California on Sunday.

The 49ers head coach started the duel, but Siku quickly proved her athletic skills. The walrus demonstrated impressive pushup form that many professional football players would envy.

Harbaugh interacted with several other animals during his trip. He kissed a sea lion, bottle-fed a tiger and met an elephant in between roller coaster rides, according to ABC San Francisco.

Check out Harbaugh’s intense pushup contest with Siku the walrus below.

Thumbnail photo via Twitter/@ljfernandez