Sheraton Hotels & Resorts, the largest brand of Starwood Hotels & Resorts Worldwide Inc., has completed a multiyear $230 million renovation of four Hawaii properties.

The revitalization projects include the $188 million renewal of the Sheraton Waikiki, the $6.5 million renovation of the Sheraton Maui Resort & Spa, a $16 million upgrade to the Sheraton Kauai Resort, and a $20 million refresh of the Sheraton Kona Resort & Spa at Keauhou Bay.

The renovation of the 1,636-room, 31-floor Sheraton Waikiki offers new guest rooms and suites, redesigned public areas with new landscaping and pools, renewed convention facilities, new restaurants and bars, and new back-of-house equipment to increase service efficiency.

In December 2011, the 508-room Sheraton Maui Resort & Spa, anchored by Pu‘u Keka‘a (Black Rock), redesigned and renovated its guest rooms with Hawaiian colors, textiles and prints, and now has wireless Internet in every guest room.

Sheraton Kauai Resort completed renovation of its 394-room resort in April. The upgraded Ocean Lobby opens into a new, open-air Ocean Courtyard that is landscaped and adorned with tiki torches. It features six seating areas, three of which have fire pits. An added breezeway provides direct access to the resort’s newly expanded and tiered Ocean Pool, lined with eight private bungalows sitting just above the shore. The hotel’s RumFire restaurant offers 180-degree ocean views from its 240-seat restaurant and lounge.

The newly renamed Sheraton Kona Resort & Spa at Keauhou Bay, formerly Sheraton Keauhou Bay Resort & Spa, completed renovation of the 485-room property in September. Significant enhancements to guest rooms, public areas and meeting spaces include culturally inspired designs by Hawaii designer Sig Zane. New oceanfront dining concepts include Rays on the Bay, touted as the only restaurant in the world with manta ray viewing.