<s>[INST] How far is San Diego from Los Angeles by boat? [/INST] The distance between San Diego and Los Angeles by boat varies depending on the specific route and speed of the vessel, but it typically takes about 24-36 hours to travel the approximately 120-140 nautical miles (222-259 km) between the two cities by boat.</s>\ <s>[INST] What is the average speed of that boat journey? [/INST] There is not one single answer to your question since the speed of boat depends of multiple factors.

Fast, sportboats can reach top speeds close to 100 knots and even over while so called daytrip boats usually moves in a speeds between 6 to 15 knots.
As for cruisers, they usually sail in a speeds between 10 to 25 knots.

A knot is around 1.8km.</s>