Send the operator one accurate message rather than several vague questions. State the group size, ages, swimming ability, breath-hold experience, and preferred date. Say whether you want surface snorkelling, an introductory descent, or formal training. Mention pregnancy, medical questions, seasickness, or accessibility needs privately and honestly.
Ask for the proposed meeting point, entry or boat arrangement, and expected water time. Confirm the guide-to-participant ratio, equipment, flotation, and emergency plan. Ask how weather decisions are made. Request the cancellation wording, payment channel, and rescheduling terms in writing. Confirm fees and availability for your date.
Use the completed worksheet below during the reply. Do not mark a row complete because an advertisement uses reassuring language. Mark it complete only when the operator gives a clear answer. Keep the message and reply together. That record helps the group make a calm decision later.
If the answer changes from surface snorkelling to breath-hold training, restart the safety review. Reassign the direct watcher. Recheck the conditions and equipment. Confirm the training level. A small change in format can change supervision and rescue needs.