This narrow strip of sand connects the eastern part of Crimea with mainland Ukriane.
It is a flat, road – actually if is most of the times, multiple parallel roads. And the fun part is to navigate which road to take. They will all take you the same way, so it really is about which one is the best. Sometimes you win, sometimes yo loose. But they’re all quite easy.
You will not meet a lot of people before hitting some settlements at the northern end (assuming you are coming from south). Once you hit the settlements, the road will be paved.
Most embassies advise against attempting to enter Ukraine. I am not even sure you can.
I’m hoping we one day soon can ride into Crimea as the island is absolutely beautiful, the people awesome (no matter if they are Tartars, Ukrainian or Russian).