This is a link to an old page – and you may quibble with the term “amazing” – but there are indeed a good sized amount of walrus facts on the page below. Here’s a sample
In water, walruses can reach 35 km (22 mi) per hour, but they swim with a medium speed of 7 km (4 mi) per hour. Walruses do not go further than 30 km (19 mi) off the coast. Propelling is ensured by rear limbs, while the front limbs work like rudders.
Here’s the link to the full page (beware the underlined blue terms, they spawn ads):
http://news.softpedia.com/news/6-Amazing-Facts-About-Walruses-72981.shtml