On Tuesday, 26-year-old Taylor and 32-year-old Calvin each shared stunning photos from the beach getaway to their Instagram accounts.
In one sweet snapshot, the bikini-clad pop star could be seen at the water's edge with one foot in the air as she wrapped her arms around the DJ's waist, planting a kiss on his lips as he held her face.
Taylor showcased her slender figure in two different bikinis, one which was yellow and black, and one which was black.
And Calvin certainly liked what he saw, as he snapped photos of his girlfriend while she pulled a series of sexy poses.
The Scottish star also captured a video which showed Taylor bouncing around on a water trampoline before jumping into the ocean.
The Out Of The Woods hit-maker posted the clip to Instagram with the caption: 'That time when we finally took a vacation.'
Meanwhile Calvin - sporting swimming trunks - took a Snapchat video of the happy couple soaking up the sunshine on a giant inflatable swan.
Taylor also wrote their initials - 'TS + AW' - in the sand, using Calvin's given name Adam Wiles.
The famous duo did not reveal where their holiday destination is, put they appeared to be on a private beach lined with palm trees, with jet skis and kayaks at their disposal.
Earlier this month on March 6, the two stars celebrated their one-year anniversary.
Calvin gifted Taylor a gold locket which was engraved with the date 3.6.15, when they got together, while she appeared to have returned the favour by baking him a cake with '1 year' written on it in icing.
Taylor has previously dated the likes of Harry Styles, Joe Jonas, John Mayer, Jake Gyllenhaal, Conor Kennedy and Taylor Lautner.
Meanwhile Calvin has been linked to Ellie Goulding and has had relationships with Rita Ora and model Aarika Wolf.
See the images the duo shared below...