Little ones have more hills! It’s how they stay islands, as opposed to, say, undersea shelves.
I use mapometer.com to figure out where I’ve been and how I got there, since nothing I own includes GPS. If I want to go from the north end to Net Loft, I can go by either North Road or South Road, as we live fairly close to the post office, which is where those two roads diverge at the western (north) end of the island.
At first glance, South Road looks just the ticket: it’s almost a kilometer shorter and is practically a straight shot around the southern edge. With pretty views of the sea tossed in! When I tried biking this last year, I went just this way. I vaguely recalled it had some hilly bits, but I don’t often go to that end so my memory was a bit fuzzy. I took a selfie when I was almost to Net Loft, purely for documentary purposes; only my nearest and dearest have ever seen it, nor ever will.
Here is the elevation differences, as copied off from mapometer between North and South roads (click for full-size pics):
Yeah, north is for sure the way to go.