Totally agree, I put some text and tried to make it clear. My first intention was to find some live ship tracking API and see how many ships cross the strait, but they were all hundreds of dollars a month, and behind enterprise contact forms.
I've done some small scale ship tracking in the past, and yeah, anything beyond finding a specific ship while it is near the shore is stupid expensive.
You need to send an analyst there with binoculars, a box of cigars and $15k in cash to get realtime trustworthy data