no value Upgrades - Chicago Sailboat Charters What this gets you immediately When the iframe updates to /sail-details/?page=1... → parent gets booking_details_view When it updates to /booking/?Page=2... → parent gets booking_payment_view Then we add the success detector once you capture the post-payment URL or success DOM marker. 2) Parent side: receive the message and fire GA4 events centrally Add this to the marketing site (parent) via GTM Custom HTML (All Pages on booking page):

Upgrades

Our First-Class Semi-Private sails are normally at 9am on Sat/Sun morning, and in the evenings on Mon, Tue, Thu. When you login with your ticket number(s), you will see all the sails that are available. Sails that are upgrades with any amount owed will have a blue background. Upgrade amounts will be listed next to any sail that requires an upgrade fee.
 

Upgrade Price per pair of seats (based on availability):

Saturday Fireworks – $45: 3 hour sail – We will get in great position a few hundred yards from where the fireworks are launched for a front row view of the fireworks.
Wednesday Fireworks – $30: 3 hour sail – We will get in great position a few hundred yards from where the fireworks are launched for a front row view of the fireworks.
Weekend Late Afternoon – $15: These sails typically start some time between 3:30pm and 5pm.
Friday Night Sail – $20: We start these sails around the same time as our normal M/Tu/Th night sails.
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