Hi,Ms.lin
1)from metropark hotel causeway bay to disneyland holywood hotel:
Walk about 2 minute from the hotel to the Tin Hau Metro Station, take Island Line from Tin Hau to the Central Metro Station, and then take Tung Chung Line from Central to Sunny bay, afterwards, take Disneyland Resort Line. Disney hollywood hotel is around Disneyland Resort.

2)from metropark hotel causeway bay to ocean park:
walk about 2 minutes from the hotel to the Tin Hau Metro Station, take Island Line from Tin Hau Station to Admiratlty Station. And then get out from Exit B to take Special Line Bus 629 for the Ocean Park. Singal adult ticket fare for the bus is HK$ 10.6. Operation time is from 09:00 to 16:00. and the frequency is 10 minutes or so.