The GHT is in fact only about a two minute walk from the exit nearest the front of the train at Roppongi Station on the Hibiya Line. The station is in fact connected to the plaza from which one accesses the Grand Hyatt. While the hotel is not on top of the station per se, the project (Roppongi Hills) of which it is a part) is in fact on top of the station.
If you have carry on only I would say the train is a viable option. If you have even rolling large suitcases the Limo Bus becomes the favorite call as it stops directly at both the Park and Grand Hyatts.
An evening at either is going to be great. In one day here you will have enough near either or accessible to either location to keep you very occupied.
Enjoy your trip and pop over to the Japan forum for any specialized advise you may require.
Mike
Originally Posted by
lulu65
Both Grand Hyatt Tokyo and Park Hyatt Tokyo are not near any JR railway station. GHT is about 10 minutes walk from Roppongi station of the Hibiya line of Tokyo Metro(underground). PHT is about 15 minutes walk from the West exit of JR Shinjuku station. It will be quite an effort to take the train and walk there if you are carrying your bags. There was an earlier reference that GHT is on top of a railway station. That is not correct. I think the only hotel in Tokyo that is 'on top' of a railway station is Hotel Metropolitan Marunouchi which is at Tokyo Station, which is an enormous and complicated structure to start with.
If you are staying in a standard room, you will find PHT much more impressive that GHT.