Rick
Although it involved drilling holes in the deck and hatches and was done years ago, on the Drum they have hasps with padlocks, makes it real easy to open a hatch for the special tours. As we get time in the winters we are cleaning and painting the lower levels and intend to put grating in the deck in some locations so visitors can view the lower level. we have already done the refer and part of the pump room.
Tom Bowser