Having to spend a week in Barcelona at Mobile World Congress ranks as one of the easier problems to manage in the tech industry. I mean, would you rather go to CES?

But if you’re new to MWC, as I was only five years ago, the wireless industry’s global gathering can have its confusing moments. If so, the following advice may help you navigate your way around this trade show.

Fira Gran Via: MWC’s primary venue is a set of eight large halls that you can traverse much faster than the Las Vegas Convention Center, thanks to the overhead passages–most with moving walkways–that knit the Fira together. To get there, take the train: The L9 Sud Metro stops at the Europa | Fira and Fira stations, to the north and south of the Fira, while frequent commuter-rail trains from Espanya also stop at Europa | Fira.

Power and bandwidth: In addition to a plug adapter (you already have that in your bag, right?), you should also pack your laptop’s charger’s extension cord if it came with one. Distance from an outlet has nothing to do with that; a laptop power brick plugged into a plug adapter plugged into a wall outlet can easily fall out, but the extension cord will distribute that weight away from the outlet.

I hope you won’t show up to MWC with a locked phone that will prevent you from popping in a cheap prepaid SIM. But if your locked device is on Sprint or T-Mobile, you at least get free, slow and adequate roaming.

Eating and dining: Barcelona is one of the world’s great cities to eat and drink. Unfortunately, the press room in the Fira does not provide lunch, so you’ll have to forage elsewhere on the show floor (FYI, Ericsson’s exhibit in Hall 2 has offered a great free lunch the last few years). The press room does, however, offer an apparently inexhaustible supply of coffee from a bank of Nespresso machines, and plates of cookies occasionally show up there too.

Remember that dinner happens late in Spain, so don’t turn down a late-afternoon snack.

Getting around: Your MWC registration comes with a transit pass good Monday through Thursday; don’t just use it to commute to the Fira. Railfan tip: Because the L9 Sud line is automated, standing in the front of the train lets you enjoy the view of the tunnel ahead. Cheapskate tip: That line is also the most cost-effective way to and from the airport.

If you normally rely on Apple Maps, set it aside for the duration of MWC. This app still doesn’t offer transit directions in Barcelona–two and a half years after Apple bragged about adding transit navigation, which itself came nearly eight years after Google integrated the same in its own maps.

Barcelona has a not-undeserved reputation for pickpocketing. Don’t leave your wallet in an exposed and open pocket, and hang on to your bag or purse.

Other details:

If you’ve never seen Whit Stillman’s 1994 indie classic Barcelona, try to fix that before you depart. It’s not available on Netflix and Amazon’s free streaming, but you can rent it on Amazon, Google, iTunes and Vudu.

If you have some free time–by which I mean, if being six to nine time zones ahead of your editors gives you unsupervised time–try to spend some of it visiting architect Antoni Gaudí’s masterpieces. The Casa Milà apartment building and the Sagrada Família basilica aren’t as far out of your way from MWC as Park Güell; they all have a kind of magic about them.

On your way home, if you have mid-tier or higher status on American, Delta or United or have a Priority Pass membership, you’re eligible to visit the Sala VIP Miro lounge at BCN, upstairs to the left and downstairs after passport control for non-EU flights. Nobody will mistake it for a Lufthansa Senator Lounge, but it works for a pre-departure snack and a drink or two before a long day spent over the Atlantic.

Updated 3/1/2018 to correct and expand lounge-access directions.