It's not that near to the boardwalk. It's about a 15 to 20 minute drive to the Kemah Boardwalk.
I don't think I would walk over the bridge. My daughter lives near by and uses Uber a lot. Or if you drive, paid parking lots are nearby but fill up so go early or expect a little further walk. Have fun
I wouldn't suggest walking. There is a lot of traffic and a huge bridge to cross from the Seabrook side to the Kemah side. We were able to get an inexpensive cab when we needed one right there at the hotel.
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