Where is the water around the NEC?
Obviously Southampton is very well placed in that respect for floating displays and on the water demonstrations and features etc.
London Excel does have some large bodies of water around it, so is able to offer a limited amount of space for 'stuff' happening on the water too.
I know the NEC can have indoor pools like Earls Court did, and is probably drowning at the moment due to the weather, but it would limit what's possible.
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