(INFphoto.com)

Miley Cyrus and her fiance, Liam Hemsworth, enjoyed some low-key relaxation on a vacation in Costa Rica.

The couple traveled with Hemsworth's eldest brother, Luke, and his wife Samantha, along with their three children, E! News reported.

The pair was spotted lounging on the beach Friday while watching the sunset. The 20-year-old actress wore a cropped, tight black t-shirt and white shorts. Hemsworth wore a black bathing suit.

The couple was also snapped taking a dip in a river in Costa Rica.

SEE MORE: Hollywood In Love

Reports swirled last September that the couple was on the rocks after some tweets from Cyrus:

"Thought of the day: maybe it's not that they love you less, they just love you the most they are capable of loving," she tweeted.

She later put the rumors to rest, tweeting, "& no there is not trouble in paradise…. just thoughts."

Hemsworth celebrated his 23rd birthday on Jan. 13. The couple met while filming "The Last Song."

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