What should I know about navigating from Wide Bay Bar to Tin Can Bay Marina?
I'm planning to bring Grace across Wide Bay Bar and into Tin Can Bay Marina. How straightforward is the passage inside the bar, and what should I check for depths and tide timing?
Answer
The passage from Wide Bay Bar to Tin Can Bay Marina suits cruising yachts and motorboats that can cross the bar in suitable conditions and follow the marked channels inside. For Grace, check her loaded draught, then confirm current bar advice and the marina's shallowest approach depth before choosing an arrival tide.
Check Grace's draught and clearance
Grace's name alone tells you nothing about her suitability: you need her actual draught, length and beam. Measure draught with cruising stores, fuel and water aboard; for a lifting keel or centreboard, specify its position and the resulting draught.
Contact Tin Can Bay Marina before committing to the passage. Give them those dimensions and ask:
- What is the current minimum depth in the entrance and along the approach to the allocated berth?
- Is that depth referred to chart datum, or was it measured at a particular tide height?
- What arrival window do they recommend for Grace's draught?
- Are there recent shoaling reports, moved marks or specific approach instructions?
Calculate clearance as charted depth plus predicted tide height minus draught, with an extra allowance for uncertainty and boat movement. For example, 1.2 m charted depth plus 1.0 m of tide gives 0.7 m clearance beneath a boat drawing 1.5 m. These figures are illustrative, not depths for this route.
Assess Wide Bay Bar separately
The exposed bar demands the closest attention. Conditions outside can be manageable while breaking water makes the entrance unsuitable, particularly when an outgoing stream meets incoming swell.
Get current advice from Marine Rescue Tin Can Bay, check Maritime Safety Queensland notices and use updated charts. Sand moves. An old waypoint list or another boat's recorded track cannot establish a safe crossing line.
A daylight crossing towards the top of a rising tide is often considered, but the right window depends on swell, wind, tidal stream and the latest local advice. High water and slack stream do not necessarily coincide. Extra depth does not make breaking seas acceptable.
Wear lifejackets for the crossing, secure loose gear and keep everyone out of exposed positions.
Have the engine ready, check the steering and enter your route before reaching the approach. If the crossing looks wrong, remain clear and reassess while you still have sea room. Do not let a berth booking dictate the decision.