No delivery of anything is required, neither in the objectives themselves nor in the context of the mission's description.
[FIXED] [PTS 25.0] "Lake Paradise" contract objectives say "deliver to" instead of "visit"
@McKillem Look closely and you will see it says 'some samples for analysis'. This would generally imply carrying or delivering an item of some sort.
@Xenomethean
Have a look closer yourself and you will see that the objective of the mission should be to collect water samples from lakes, not deliver samples to lakes.
Similar contract found in British Columbia:
@McKillem Your pedanticism is astounding! Just go visit the spots and enjoy the drive and the scenery.
@Xenomethean This is feedback forums mate, get the hell out if you don't wanna see feedback.