This book is a complete resource for sailors visiting Trinidad and Tobago. There is a code which downloads a free app. The app links to a complete array of additional information. Everything from the weather, the winds, the formalities and regulations, to blogs and photos, things to do, events, anchorages, costs, marinas, google earth, camping, walking, flights, ferries, boatyards, repairs, currency, addresses, communications, snorkeling, fishing workshop, diving, flora, the animals, online charts, updates, the parks, local food, the restaurants, hotels and accommodation, Wikipedia, Noonsite, sailing guides online, diesel engine troubleshooting & repair etc. The text is the current official U.S. Gov Sailing Directions.