I guess it would depend on how much time you had and such....personally I if it is for a leisurely break I would take the bus to POR and then the nice boat ride over to DTD.....or take the Monorail to one of the resorts and the bus over.
I second Lewis on this one. If you take the bus to SSR get off at the Congress Park bus stop and walk to DTD. You'll be at the Rainforest Cafe in 5 minutes!
I said the bus to SSR and then using the walkway because it would be the fastest route. When taking the bus from the Contemporary it will also stop at the Polynesian and maybe the Grand Floridian, so it will take a bit longer.
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