By Kim Peiffer
Updated Jan 24, 2015 @ 4:59 pm
Credit: Taylor Swift/Instagram

It's girls' trip time! She has hiked the West Coast with singer Lorde and flown across the pond with Karlie Kloss, and now, Taylor Swift is taking her fans inside her latest #BFF excusrion, this time to the sandy shores of pure paradise.

Swift has been Instagramming up a storm while on vacay in Maui with sisters Este, Danielle and Alana Haim of the band Haim, from pics of the ladies hiking near a waterfall and posted a fun snap of herself riding on Este's back (below). And yes, just in case you were dying to know, there's even an Insta video of their whale sighting.

Credit: Taylor Swift/Instagram

RELATED: Celebrity Bikinis: See the Photos!But her traveling companions aren't the only reason the star is causing frenzy. Swift, who has said in interviews that she doesn't like to show her belly button, swapped her usual retro-style one piece bathing suite for a bikini this time, revealing a rare glimpse at her infamous belly button.

And per usual, having no problems poking fun at herself (which we've got to love her for) Swift even shared a snap of herself wearing a one-piece on a beach (below) and sarcastically writing, " 'She's always wearing, like, a 1950's bathing suit.'"

Credit: Taylor Swift/Instagram

Taylor Swift, we've got to hand it to you--you look quite good in a bikini!