They are at the Galveston Moody Gardens and the parking and presentation are FREE and the only issue I see is they are on Wednesday evenings - more from their website:
Seaside Chats
Please join us for these FREE presentations on topics related to the sanctuary. Seaside Chats will take place in the Aquarium Pyramid at Moody Gardens throughout the month of February.
Wednesdays, 6:30-7:30 p.m.
February 5 What are National Marine Sanctuaries
February 12 Deep Water Tools & Technology
February 19 Shallow Water Tools & Technology
February 26 Remotely Tracking Sealife
FGNMBS link to main page with some info (but will change over time).
Calendar of events link.
Flyer with more info.