Is Passing a Red and White Buoy Dangerous? Maritime Rules Debunked
Q1: Can I legally pass on either side of a red and white buoy?
Yes. Hydrographically, deep water surrounds a safe water mark, making either side navigable. However, in designated channels or harbor fairways, marine traffic rules dictate leaving the marker on your port side to avoid opposing traffic.
Q2: What is the official light signal for a safe water mark at night?
Safe water marks exhibit white light only. The primary light cycle is Morse Code "A" (a short flash followed by a long flash). They may also use an isophase cadence (equal periods of light and darkness) or an occulting rhythm (mostly lit with brief darkness).
Q3: How does a safe water mark differ from a red and white diver-down flag?
A safe water mark is a permanently anchored navigational buoy with vertical alternating stripes indicating deep water. A diver-down flag is a temporary red rectangular flag with a single diagonal white stripe flown from a boat or float, warning vessels to keep a minimum 100-foot distance due to swimmers underwater.