I have only once been to the beautiful Corregidor Island and I only spent five hours there. I truly wish I had spent a few days there as it was beautiful.
Sun Cruises own 3 boats that operate between Manila and Corregidor. During the low season which is July to September they usually operate with one of the smaller boats that can accommodate 145 passengers, but the bigger boat which accommodates around 250 passengers will operate other times of the year. Safety instructions are given before setting sail, life vests are under the seat and a safety belt is used if the sea is rough. The boat travels around 40 kms per hour and the journey takes around 75 minutes for the 48 km trip. There are TV screens which show a documentary about Corregidor, and snacks are provided ………at a inflated price!!!!
Overall the service is good and the journey comfortable. The only drawback is that you cannot go outside the boat, so only those sitting by the window can have a good view.
The Sun Cruise Terminal is located behind the Folk Arts Theatre, so take any form of transport that passes by the Culture Center of the Philippines and alight opposite it in Roxas Blvd. Walk to the right of the Cultural Center, past Harbour Square, then continue past the Folk Arts theater then take a right immediately after, and you will see the terminal. There are signs along the street and the walk will take less than 10 minutes, unless you come by taxi which is the only form of transport that will take you directly there. If you have reservations go straight to the counter where you will be allocated a seat number for the boat and a bus number for the tour of Corregidor. After you have been allocated the above, take a seat until boarding time.
If you want to visit Corregidor there is only one company that operates the tours, and because it is so popular i suggest you book up to one week in advance. The company is called Suncruises and there boat leaves from Harbour Square area in Manila Bay. Boats leave at 8 am but you should be there at 7 am to check in, but if you are later than 7.30 am your seat may be given to someone else. The boat operates every day except in the off season which is from July 1st to October 31st, when it only operates on Thurs-Fri-Sat-Sun. Rates are between 2,200 and 2,500 depending whether you choose to go on a weekday or weekend, which includes ferry transfers; shrine and entrance fees; guided island tour and buffet lunch. You can also choose not to have the buffet and just take the day return which only includes the shrine and entrance fees for around 1,400 pesos. There is also a hotel on the island if you choose to stay a night. Rates include breakfast and seem to be quite reasonable. It is possible to book online and print the tickets.