Wyndham Extra Holidays specializes in offering great vacations in great locations throughout the United States including Hawaii St. Thomas Puerto Rico and Canada. Wyndham Extra Holidays is a specialized provider of rental vacation accommodations and a part of Wyndham Vacation Ownership and which is headquartered in Orlando Florida. Wyndham Extra Holidays specializes in offering great vacations in great locations throughout the United States including Hawaii St. Thomas Puerto Rico and Canada. Wyndham Extra Holidays is a specialized provider of rental vacation accommodations and a part of Wyndham Vacation Ownership and which is headquartered in Orlando Florida.