Janna GraberNZ Herald·9 Aug, 2026 07:00 PM4 mins to readTonga’s Mandala Resort: Off-grid island escape with treehouses and reefs. Photo / Benjamen RaderTonga’s Mandala Resort: Off-grid island escape with treehouses and reefs. Photo / Benjamen RaderTen guests, one tiny island: Janna Graber stays at Tonga’s off-grid retreat, where guests swim beside pristine reefs and sleep in treehouses or beachside bungalows
The sun is barely up when I hear it: the low, steady crash of waves against the shore. One wall of our room is
