Hydrate! Water maybe add some liquid IV or even a tiny amount of salt. Salt helps with absorption (so I've been told).
Small snack: protein bars, trail mix, fresh fruit (something along those lines).Nothing too heavy especially if your plan is to surf again in a little.
Recovery breathing: Wim Hof breathing (plenty of youtube tutorials you can check out.)
If possible try to get out of sun for a little as that can be very draining.
As far as while being out back to recover I think breathing is gonna be your best bet there. Slow controlled breathing from the diaphragm (any marathon running will probably tell you this type of breathing is key to last the race.)
Replied on Anyone have any tips on how to recove...
12 Nov 07:28
Forgot to mention that you can also go to a vitamin supply store (GNC, vitamin shoppe, etc) and get some BCAA to add to water. Lots of weight lifters, gym rats, swear by it from interworkout recovery.