NPPL re-val by experience.....

[Fake Sealion]

Apologies if this has been well covered before but.....

Does the "one hour with an instructor" within the validity period have to be ONE single flight of (at least) one hour or (as I read somewhere) can it be two or more flights totalling at least one hour?? For example a couple of Club check flights?

Note this is for NPPL SEP not JAR - PPL

Thanks