by Natalie Finn | Fri., Jan. 18, 2013 4:23 PM
The betrothed couple jetted down to Costa Rica last Friday along with Liam's eldest brother, Luke, his wife, Samantha, and their three kids, arriving in time to celebrate the Hunger Games star's birthday on Jan. 13.
Tropical-weather pursuits were the name of the game, Miley and her now 23-year-old fiancé seen hiking and enjoying a refreshing dip in a secluded river with a bunch of pals.
Yesterday, the couple strolled on one of the endless gorgeous beaches at their disposal and cuddled up to watch the sunset—and we've got some exclusive photos of their romantic moment.
Check 'em out.