The walrus is often seen sleeping and enjoying a well-earned rest aboard the vessel. HNLMS Dolfijn entered service in 1993 in the Dutch Navy's Walrus-class, alongside HNLMS Walrus and HNLMS Zeeleeuw.

SOS Dolfijn releases video of 10-metre-long whale, similar to the one in famous 19th-century novel. Emily Chung · CBC News · Posted: Dec 01, 2021 2:42 PM EST | Last Updated: December 1, 2021.