The grounds offer a sport court where tennis and other activities can be played, a private beach, and three boat moorings (Nantucket has a moratorium on boat docks).

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By holding more water in upper-river reservoirs during the summer months, the split-season plan would boost recreational interests that require higher water levels for boat docks and other structures.

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Among the measures the conservationists want are: tougher police action against those who ignore speed restrictions in manatee zones, more manatee refuges and a ban on building facilities, like marinas, boat ramps and docks by new waterfront properties until local authorities have implemented plans to protect manatees.

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We also spotted a scientist standing on a cliff, waiting to get picked up by a research boat via crane (there are no docks or beaches on the islands).

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Powers stays on the lobster boat and Thomas follows behind, back to the docks.

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The show was to have featured displays of boats across the city's docks and a programme of demonstrations including championship sailing, wake-boarding, power boat racing, and water-skiing.

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