Tides and currents are usually strongest in the centre of channels. To avoid tides and currents proceed along the edge of channels unless the flow is with you. However, be watchful of sandbanks and going aground.

Tides increase and decrease at six hourly intervals i.e. low tide follows high and vice versa approximately every 6 hours.

The maximum strength of the tide (flooding - coming in, or ebbing - going out) occurs half way between high and low tide (i.e. 3hours before or after the peak). At Aberystwyth this period of the tide can cause turbulent water at the harbour entrance.

• Listen to weather forecasts
• Always keep an eye on the weather as it can change quickly, especially out at sea.
• Watch out for changes in conditions (wind building up) as this can quickly affect sea conditions.
• Know the tide times and heights.