DeMarcus Ware & Demaryius Thomas: Post Super Bowl Bro-cation With Lions

DeMarcus Ware and Demaryius Thomas are celebrating their Super Bowl victory over the Panthers ... by staring down LIONS on a South African safari.

The Broncos superstars are visiting the Londolozi Game Reserve in South Africa -- home to lions, leopards and elephants. In addition to observing wildlife ... the guys toured a winery, went deep sea fishing and visited Nelson Mandela's prison cell on Robben Island.

A rep for Ware tells TMZ Sports the trip was planned before SB -- but as it turns out, their $100k bonus checks for winning the game will easily cover the trip. 10 day trips like theirs tend to cost around $13,000.