What will most likely occur if an operator encounters marker buoys indicating shallow water and spots a sandbar?

If an operator encounters marker buoys indicating shallow water and spots a sandbar, they will likely reduce speed and navigate with caution to avoid grounding the vessel. They may also adjust their course to steer clear of the shallow area, ensuring the safety of both the vessel and its passengers. Additionally, the operator might consult navigational charts or GPS for further information on the water depth and surrounding hazards.