Most modular students have probably not had anything to do with an FTO prior to starting their CPLs.
I can understand having a suggested route that meets the criterior.
The JAR requirements are as stated above.
I had several to choose from in my log book, and nominated a run out to Leverkusen in Germany (the return was done in 2 legs so didn't count).
Good excuse for a trip over the water. How about Midden Zealand for lunch, up to Texel, and back across the North Sea? Or Channel Islands followed by somewhere in N.France, would fit the bill too.