Swimming in LA...and a few other places

I posted this in the Southern Pacific LMCS section down below, but either no one on this forum swims in LA, or no one checks those discussions. Anyways, is anyone around here familiar with swimming in Los Angeles? I'll be there next week for work and staying downtown. I found a YMCA near my hotel (Sheraton Downtown- Hope St) but am not sure if it is ok to walk there from my hotel, if they still have a masters team, etc. I won't have a car so likely won't make it out of downtown so if anyone has any advice on swimming there, please let me know!!! Other places I'm looking for a master's team... White Plains, NY- A few days in April/May Honolulu- mid-May Austin- late-May (Memorial day weekend) San Diego- late-May/early-June Houston- not sure exactly when Philadelphia- mid-June I'm traveling for work for three weeks in May and I can't wait!!! I've already researched teams in these areas, but any advice would be greatly appreciated!!! I'd love to meet some of you while I'm on the road!