Learn Spanish (Latin America): Todas las tardes doy una vuelta.

In Spanish, the set phrase for 'to go for a stroll' or 'to take a walk' is dar una vuelta (literally, 'to give a turn'). So, doy una vuelta simply means 'I go for a stroll.' You will often see dar used in expressions like this where English uses 'to take' or 'to go for.'

Why is it 'Todas las tardes' instead of 'Cada tarde'?

Both can translate to 'every afternoon,' but todas las tardes (literally 'all the afternoons') is the most natural and common way to express a recurring daily habit in Spanish. Cada tarde is grammatically correct but usually places more emphasis on each individual afternoon.

How could I use the 'andar + gerund' structure from this lesson with this sentence?

If you wanted to emphasize that you are currently wandering around on your stroll without a specific destination, you could change this to ando dando una vuelta. Using andar with the gerund (dando) adds that wandering, ongoing feeling to the action.

Does 'dar una vuelta' always mean walking?

Not necessarily! Because una vuelta literally means a turn, a spin, or a lap, dar una vuelta can mean going for a walk, but it can also mean going for a drive or a bike ride. It just implies a casual, round-trip outing.