As a scuba diver, the St Regis Langkawi is by far the best located of all the Langkawi luxury resorts for the best diving sites in the Pulau Payar Marine Park islands, just 30 km to the southeast of Langkawi. That is likely why we’d still opt for the StR.
Scuba Diving in Langkawi - Where to Dive in Langkawi
https://divezone.net/diving/langkawi-island