Like most of the kids in Sunnydale, you learned how to swim fairly young. The beach is a popular spot for family picnics, field trips, and - of course - birthday parties, all of the schools have their own indoor pools - a legacy of Mayor Wilkins the First, who strongly believed in both physical fitness and public safety - and most of the wealthy families - like the Chases - have their own pools, variably indoor or outdoor. However, the idea of going for a swim in an unfamiliar part of the ocean, after dark, with nobody around except a fairy who won't be able to haul you back to the beach if something goes wrong, strikes as you a bad one. Likewise, you're not thrilled about the prospect of taking the beachside path and potentially running into whoever held Arrogante's leash, running the other way to investigate the loss of their guardian.
The cliff it is, then.
Orienting yourself towards the part of the wall that has the best combination of proximity, low altitude, and levelness, you focus your aura into your legs, crouch, and give the standing long/high jump your best effort.
Even with the callouses of training and ki reinforcement, landing on a bunch of small, irregularly-shaped and -placed rocks with only your socks to protect your feet hurts. You let out a short cry and fall into an awkward forward roll, scraping your shoulder and the side of your head even as you do your best to tuck the latter in out of harm's way. Luck is with you in the sense that you don't fall short of your intended mark - if anything, you've overshot it; you're still getting used to just how GOOD focused ki is for physical boosts - and also that you don't actually hit your head against anything. It still stings, though.
"Alex?" Briar asks, from somewhere above you. "Are you alright?"
"Peachy," you reply, sitting up and looking back. The ground where you touched down appears any slightly more disturbed than the rest of the cliff-top. You check your feet: both socks are wet, dirty, and torn from all the night's activity, but your feet don't appear to have picked up any damage worse than bruises. A quick inquiry to Briar confirms that you aren't bleeding anywhere else, either. That's a relief; where magic is concerned, blood-trails are Bad News. Briar also tells you that, as you feared, your landing dislodged a few rocks back over the cliff and onto the beach below. There's nothing you can really do about that, and anyway, with the cove as torn-up as it is, there's a chance the debris will be mistaken for a direct result of the battle, not something that happened later.
Wincing slightly as you stand, you begin making your way back through the trees, heading for your hotel.
The trip that took you just a few minutes under the combined influence of magic, ki, and urgency proves much longer now that you're out of mana and have sore feet to work with. You're tempted to ask Briar to heal you again, but there's a reason why Link carried multiple fairies around in bottles, instead of just asking one to stick with him and heal him over and over as needed - the reason being that a typical member of the race only generates enough pixie dust to catalyze their healing magic once every day. Briar's increased size lets her accumulate a sufficient amount of the dust to heal someone twice in the same span of time, but when Arrogante splashed her, it washed away a lot of what she'd built up. It'll be hours before she has enough dust to heal someone again.
The obvious solution is to have Briar collect and store a certain amount of pixie dust each day for later use, but while the stuff retains the properties that Earth's mystical community knows of indefinitely, the healing power only works with dust that's been shed directly from a fairy's wings. After a few seconds of separation, it's no longer useful for that purpose. Annoying, but there's not much you can do about it, particularly now.
It takes you over half an hour to reach the airport complex. Another burst of ki gets you back over the fence without incident, the soft grass on the inner side proving much gentler for your weary feet, and from there it's about a twenty-minute walk to the hotel. You've barely cleared the fence when you realize that you have another problem.
Being a major international airport, this place has people coming and going at all hours. It's not exactly overflowing with pedestrians at this hour, but there are still folks who would wonder just what the hell a kid your age is doing, running around on his own in his bedclothes and socks. You've recovered some of your mana since leaving the beach, so you do have the option to try and skate past while a spell diverts their attention, but you get the feeling you'll need that magic for when you reach the hotel lobby, where you're guaranteed to meet people. The streets are quiet enough that you could try to sneak through without using magic. Or you could take a page from Cordelia's book and walk in like you own the place and everybody in it, making it clear that your business is none of theirs, and they question you at their own peril.