can't think of what do to in manila other than shopping, food tripping and bars but if you fancy to sat in a quiet garden you can go to fort santiago in intramuros. I love eastwood citywalk in libis and if you want to treat yourself with a grand buffet dinner Spiral in sofitel hotel is worth a try just get your wallet ready Or if you want a romantic dinner on a cruise try Manila bay Dinner Cruise (pirmi travel). You can also go on a day tour going to corregidor through sun cruises or stay there overnight.
heres the link if anyone is interested
http://corregidorisland.com/gettingthere.html