1. Fort San Felipe, also known as Fortaleza San Felipe, is a historic fortress located in Puerto Plata, Dominican Republic. It was built in the 16th century by the Spanish as a defense against pirates and foreign invaders. The fortress is situated on a hill overlooking the city and the Atlantic Ocean.

The fort is named in honor of King Philip II of Spain and is considered one of the most important military structures from the colonial era. It has played a significant role in the history of Puerto Plata and the Caribbean.

The main feature of Fort San Felipe is its medieval-style stone walls, which were constructed using coral rock. Inside the fort, there are various rooms and chambers, including a chapel, a gunpowder storage area, and a museum. The museum houses a collection of artifacts and exhibits that highlight the history and significance of the fort.

2. The working hours of Fort San Felipe vary depending on the season. During the high season (November to April), it is open from 9:00 am to 5:00 pm. During the low season (May to October), it is open from 9:00 am to 4:00 pm. It is recommended to check the official website or contact the fort directly for the most up-to-date information. Unfortunately, a phone number for the fort was not provided.

3. The entrance fee for adults is typically around $3 USD, and for children it is around $1 USD. Tickets can be purchased at the entrance of the fort. There are multiple transportation options to reach Fort San Felipe, including taxis, local buses, and guided tours. It is located within walking distance of the city center in Puerto Plata, making it easily accessible for tourists.