A group trip is a logistics problem, not a venue problem
The room is usually the easy part. What decides whether a group weekend works on South Padre Island is how people arrive, where they sleep relative to where they gather, and how they move between the two. Settle those three in order and the rest of the schedule follows.
Start with group lodging for the shape of the stay: one property or several, rooms or a house, and how far the walk is from beds to whatever you have booked for the evening.
Getting everyone onto the island
Every road arrival crosses the Queen Isabella Memorial Causeway, so a group arriving by car arrives one carful at a time and in whatever traffic the bridge has that afternoon. Read getting here before you set a reporting time.
People flying in will land at one of three regional airports, and the ground leg is the part that varies. Airports compares what each one currently publishes for transfers. Collect flight numbers early: a group booked across three airports is really three separate arrival plans.
If cars are coming, read parking before promising anyone a space. A group can easily bring more vehicles than a property's reservation covers.
Moving the group once it is here
Island Metro is the island's fare-free bus, and Visit South Padre Island describes it for groups as a free shuttle that brings teams to and from hotels, meeting spaces and group activities. It is still a published route on a published schedule, so check the stops against your venues rather than treating it as a charter.
Use island areas to see how far apart your lodging, meeting space and evening plans actually are. Two addresses that both say South Padre Island can be a long walk apart with beach gear or in the dark.
The Convention Centre
Visit South Padre Island's Convention Center page describes the venue as built to hold groups of up to 2,500, with audio-visual facilities, high-power outlets and teleconferencing options, and a $1.2 million renovation that added green features such as solar lighting. It also notes five full-service hotels a short distance away.
That page does not give square footage, a street address or parking details, so take those, along with dates, rates and room needs, directly to the venue before you build a schedule around a date.
Permissions and dates
This guide does not publish the City of South Padre Island's rules for events on a public beach, a street or with amplified sound. If your plan touches any of those, ask the City what it requires before you commit to a date.
Check events and annual events too: an announced event weekend changes lodging prices, parking and how busy every restaurant is, whether or not your group is attending. Trip ideas can seed the free hours between sessions.