Did a search, but couldn't find an exact answer. Traveling JFK-CDG-SZG. I'm not 100% familiar with CDG as I've only gone through about a dozen times. I'll be arriving on DL at 2E, leaving for SZG at 2D (AF codeshare/Styrian). Which is the fastest way to get from 2E to 2D, the bus or by foot? If by foot, which is the best route? And how about on the return?

Based on my previous experiences, I've padded my connection time enough on the outbound. If I'm arriving at 2E, and going to 2D, are there showers that an Elite Plus could use?

Thanks in advance.