Where is the entrance?
Literally 'Through where does one enter?'. A very common and natural way to ask how to get inside a place.
Use this to ask 'Which one is the entrance?' when you see multiple possible doors or ways in.
A very simple, abbreviated, and polite way to ask. It's like saying 'Excuse me, the entrance?' while gesturing.
Excuse me, where is the entrance to the museum?
Pardon me, sir, where do you enter the metro station?
There are two doors. Which one is the main entrance?
Good morning, I'm looking for the entrance for the concert.
The phrase '¿Dónde está la entrada?' is universally understood and is the most standard way to ask. It's your safest and best option everywhere.
While 'entrada' is perfectly understood, you will frequently hear and see the word 'acceso' (access). Asking '¿Dónde está el acceso?' is very common, especially for subway stations, shopping malls, and large buildings.
No significant variation. '¿Dónde está la entrada?' is the standard phrase. For a residential complex or large venue, you might also hear '¿Dónde está la caseta?' (Where is the gatehouse?) to find the controlled entry point.
The phrase is identical. The only difference in the language would be the use of 'vosotros' for plural 'you', but that does not affect this particular question. For example, a local might reply, 'La entrada está a vuestra derecha' (The entrance is on your right).
Using 'ser' instead of 'estar'. — English speakers often say '¿Dónde es la entrada?'. This is incorrect. For location, Spanish always uses the verb 'estar'. The correct form is '¿Dónde está la entrada?' ('está' means 'is located').
Forgetting the article 'la'. — Learners sometimes say '¿Dónde está entrada?'. In Spanish, nouns like 'entrada' almost always need an article before them. Since 'entrada' is a feminine noun, you must use 'la' (the).
Pronouncing 'entrada' like an English word. — Avoid saying 'en-TRAY-da'. The Spanish pronunciation is 'ehn-TRAH-dah', with a soft 'd' sound and a pure 'ah' sound for the vowels, stressing the second-to-last syllable.