Room for someone up to 6’2" or so in the nesting version. a non-nesting version gains a few inches of length in the cockpit.. Shellback dinghy "seahorse" on launch day: shellback dinghy – easy and fun to sail: shellback dinghy – great for rowing too: shellback dinghy – packing for delivery. Denman marine specializes in custom wooden boat building and repair. we are also the sole manufacturer of chesapeake light craft kits in australia. we utilize both.