Global luxury brand JW Marriott hotels & resorts has debuted its Marco Island Beach Resort in southwest Florida, USA, following a $320 million (£260m; €303m) renovation and conversion project.

Two phases of a three-part makeover have been completed at the 726-room Balinese-styled resort, which features two championship golf courses, indoor and outdoor dining and a spa.

The brand’s spa concept offers four core states: calm, indulge, renew and invigorate. Guests can customise their spa experience, choosing from a variety of menu options from full-service treatments to express services that start at a 12-minute entry point. Daily beach yoga and weekly spa events are also on offer.

Executive chef Eric Vasta will head the culinary programme that includes private sommelier-led wine tastings and a chef’s table at signature restaurant Ario. Fish-grilling classes, rum tastings and private dinners on the beach will also be available to guests.

In autumn this year, the hotel will have an adults-only tower offering a rooftop pool, restaurants, and a 12,000 sq ft, (1,115 sq m) indoor entertainment centre.

Designed by Florida-based design and architecture firm Edge of Architecture Inc, the new tower will boast views of the Gulf of Mexico. Once completed, the resort will have 100,000 sq ft (9,290 sq m) of event space.

Rick Medwedeff, JW Marriott Marco Island Beach Resort general manager, said: “This brand conversion brings to fruition years of planning, dedication and hard work, and I could not be more pleased. As we move forward into the next chapter of our resort’s story, we are embracing our celebrated past and welcoming a new level of luxury by joining JW Marriott’s global portfolio of exceptional properties.”