I don't think so. This is just a tour boat that cruises the river around Riverwalk and the driver talks about historic points. But, there is a place there called marriage island. Apparently, about 300 weddings per year take place on that spot
You can charter a boat fir such an event. Passengers are not allowed to stand while the boat is in motion, but there are many beautiful spots to stop for a wedding to occur.
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