No, it wouldn’t be worth the effort.
Just looking at the numbers: it took a $61 billion annual economic engine to justify a 4,200-foot, $1.5 billion tunnel in Miami. A 3.1-mile tunnel to connect both campuses of Universal Orlando would easily cost more - and while Universal’s impact on Florida is big (around $7–8 billion/year with Epic Universe), it’s still nowhere near what PortMiami contributes.
And to be fair, Miami faces a lot of the same tunneling challenges as Orlando... maybe worse. High water table, porous limestone, major flood risks. But the difference is PortMiami supports international trade, not just tourism. That’s a completely different funding conversation. It pulled in federal dollars and solved freight congestion for one of the country’s busiest ports.
A theme park, no matter how successful, doesn’t carry that same strategic value. So spending billions to tunnel under Kirkman Road just isn’t in the same league. For that money, you could fund a massive expansion toward Epic - or make a serious down payment on a fourth gate.
To connect both campuses in a meaningful way, buying above-ground right-of-way for a private monorail, light rail, or gondola system would likely be cheaper. You’d get more flexibility, faster deployment, and fewer engineering headaches. And if they wanted to go really cheap - but still cool - an elevated-lane BRT could be a smart solution.