Promar Eco Beach & Spa Hotel is a family-run seaside resort on Porto Novo Beach in Maceira, Portugal. Its history dates to the 1950s, and the property has since expanded and modernised, earning a three-star hotel classification in 2017. The hotel is recognised for its focus on sustainability and respect for nature, and a project to upgrade the resort to four-star status has been approved by Turismo de Portugal.

Set beside the beach, near Vimeiro Thermal Baths and the Maceira cliffs, Promar offers rooms with sea views and balconies. Guests can dine at the beachfront restaurant, which specialises in fresh fish and seafood, or choose lighter meals from its pizzeria and hamburger restaurant. The spa features a heated indoor pool with water jets, a sauna, Turkish bath and jacuzzi, alongside massage and facial treatments. A rooftop pool bar serves cocktails and snacks, while a wine shop near reception offers wines to enjoy or take to a room.