Correct way to say 'everywhere in the hotel'

Recently I wanted to say that Wi-Fi is everywhere in a hotel. First, what came to my mind was "Wi-Fi is in the whole hotel", but it sounded very awkward to me. My second idea was "Wi-Fi is everywhere in the hotel". I want to know whether the first way is correct and if it sounds awkward, whether the second way is correct, and lastly what is the best way to say this.

I would offer both

• "Wifi is available throughout the hotel" (more idiomatic, as Wifi permeates/suffuses, and "throughout" is a good word to express that)

as well as

• "Wifi is all over the hotel" (a different idiomatic choice, but suggests that it is made available in (many) discrete areas of the hotel, the boundaries of which are unclear and could include "everywhere")

A common way of saying this is:

Wi-Fi is available throughout the hotel.

if you're looking for something short, hotel-wide wifi.

It can be expressed in different ways...

• "wifi available anywhere on the premises."
• "wifi available in all areas."
• "wifi signal available in every room."
• "wifi in all accommodations and public areas."

Your sentences are grammatical but not idiomatic.

When I run into similar "how do I say this better" type questions, I often either change the wording or the order. In this case, I'd change the order: "the whole hotel has Wi-Fi."