1. Sunda Kelapa, also known as Jakarta Old Port, is a historic port in Jakarta, Indonesia. It is one of the oldest port cities in the region, dating back to the 12th century when it was known as Sunda Kelapa Kingdom. The port was an important trading center during the time of the Hindu Kingdom of Pajajaran and later the Sultanate of Banten.

Today, Sunda Kelapa is primarily a tourist attraction, with visitors able to see the traditional wooden schooners called \"pinisi\" lining the harbor. These boats are still used by the local Bugis community for transporting goods between the islands in Indonesia. The port offers a glimpse into Indonesia’s maritime history and the bustling trade that has been happening for centuries.

2. Sunda Kelapa is open daily from 8 am to 5 pm. However, the best time to visit is in the morning when the port is most active. Unfortunately, there is no specific phone number available for Sunda Kelapa as it is a public port.

3. There is no entrance fee to visit Sunda Kelapa, however, you may need to pay a small fee if you want to board one of the traditional boats for a closer look. Sunda Kelapa is easily accessible by public transportation, including buses, taxis, and ride-sharing services. It is located near the Kota Tua (Old Town) area of Jakarta, which is a popular tourist destination with many other historical sites to explore.