White clothing on bow and cox makes a big difference during twilight. Launches ideally should carry proper navigation lights, but white lights as for rowing boats is currently acceptable. Wherever possible outings after dark should be accompanied by a launch. Solo night outings should only be undertaken by experienced Tideway steerers, especially at low water. Never row over or close to anything swimming in the water under any circumstances.
Oar blades can easily stun or kill.
Either go round, stop and wait or easy and glide through with the crew watching their blades. The Tideway is a tricky beast with more than a few traps in it. Learn to recognise all the main hazards listed below and keep an eye out for new ones and any others that may give you trouble. Check the stream direction by observing buoys, bridge piers, debris in the river, etc. If necessary stop and square blades to see how you drift.