Festival hops are plants that are scattered around the Lumbridge Crater during NovtumberFest. Players can gather Novtumber hops from the plants and deposit them in the hops pile near Marta for Farming experience.
There is a total of 37 (two of which are unreachable) festival hops around the crater that can be grabbed for a random amount of Novtumber hops before depleting for a while. Each bunch of hops yields 34 Farming experience at level 99 and takes 2.4 seconds to harvest. Hops may be deposited at the pile of hops near Marta for a further fourth of experience each (8.5 each at level 99).
There is a confirmation prompt about gaining experience before starting the activity that can be toggled off permanently.