Let's talk tankers ... because when we're talking tankers size counts for a lot.
The TI Class of ships are the four largest double-hulled supertankers in the world, and as of 2004 became the largest ocean going ships since the previous largest, the single hulled supertanker Knock Nevis was converted to a permanently mooredfloating storage and offloading unit (FSO). -wiki
Pictured here is the world's largest tanker, the TI Europe. TI Europe has three sister ships: TI Oceania, TI Asia and TI Africa. - source
She's 1246.5-feet long ... that's almost 4.25 football fields laid end-to-end ... with a 223-foot beam.
That means you could lay eight (8) Calypso's end-to-end across the width of her deck. Sister-ship TI Oceania (below) can capable of carrying 4.2 million barrels of oil ... enough to keep a small country going for several months.
Even with all that weight, TI Europe cruises at 17.5 knots. Wow.
But here's what got my attention: if you lined up TI Europe directly behind TI Oceania (end to end), Calypso's 500,000 candle-power spotlight couldn't reach far enough to see TI Europe's bridge.
OK so you're asking, where do ships this size go?
Answer: When you're this big, pretty much anywhere you want to. :-)