“Praying for a speedy recovery for this lovely lad! Sending strength and love to you Mel xxx,” one friend wrote.
“Good luck my brother, hope you recover easy and get home safe soon,” said another.
Lachie is a big fan of Bali, having travelled to the popular tourist destination several times over the past few years with the hopes of one day calling the hotspot home.
In a post from October, the Perth man revealed his hopes of moving to Bali permanently.
“One day I’ll get to call this place home,” he wrote along a snap of himself walking the streets of Kuta.
Another photo showed him enjoying the sunshine while at a luxurious resort pool.
“Best time away with the best company,” he wrote.
Lachie also shared a snap from a few years ago sipping on a cocktail while at Seminyak’s popular Mrs Sippy pool club.
“Miss this place already,’” he wrote.
Further details on the incident are not yet known.