Meet at Ocean Marina Yacht Club in Na Jomtien around 8:30–9:00 AM for the one-hour check-in, safety briefing, and boarding process. For a 70-person group, ask the operator to open a dedicated registration desk and divide guests into smaller boarding groups; allow extra time for life-jacket fitting and a headcount. The marina has parking and is roughly 20–30 minutes by coach from central Pattaya, depending on traffic. Confirm whether the quoted charter includes marina fees, crew, fuel, insurance, and VAT before finalizing.
Depart late morning for a private cruise through Pattaya Bay toward Koh Phai (Bamboo Island) or nearby waters. Plan approximately two hours for cruising, swimming, sightseeing, and supervised use of the five jet skis and kayaks. Jet skis should be operated only in the area approved by the crew, with life jackets worn at all times; rotate the five machines in short turns so more guests can participate. Kayaks are best launched only when the sea is calm. June can bring sudden showers and choppy conditions, so keep phones and cameras in dry bags and follow the captain’s route decision.
Serve the catered buffet onboard in the early afternoon, ideally after the first swim session, with shaded seating and staggered access to avoid a queue for 70 guests. A practical allowance is ฿800–฿1,500 per person, or approximately ฿56,000–฿105,000 for lunch, soft drinks, and refreshments, depending on the menu and whether beer, ice, cake, or a DJ is included. For the complete day budget, add the private yacht charter, crew, fuel, marina charges, catering, five jet skis, and kayaks; large-group yacht packages vary widely, so request a written quotation with all inclusions rather than relying on a per-person headline price.
Spend the next two to three hours around Koh Phai (Bamboo Island) for swimming, snorkeling, kayaking, and beach time, subject to marine conditions and any access restrictions in force on the day. Keep the party setup onboard rather than carrying glass or single-use plastic ashore, and arrange a clear “last swim” announcement at least 30 minutes before departure. Cruise back to Ocean Marina Yacht Club in the late afternoon, allowing about 1½ hours, then reserve 45–60 minutes for showers, equipment returns, disembarkation, and regrouping. Have the coach waiting in the marina parking area and keep the group together for the final headcount before departing.