anchored climb climbing danger dangerous dangers grip gripping Harness height high hoisted hold holding immobilised immobilized lines maintenance maritime mast plank repairs rigger rigging risk risks risky rope ropes safety safety-equipment safety-harness sailing seat seated seaworthy secured securing security ship stop stopped suspend suspended tall-ship tough transport vessel work workman appearance arch arched architectural architecture barred bars building closed closed-doors colors colours construction dark distinctive doors doorstep doorway entrance exit exterior heritage historic historical lined locked metal metalwork old padlocked patterns perspectives secure shut solid solid-walls steel steel-bars steel-gates stone stonework style textures walls wood wooden