Yo tengo ganas de que paremos en el oeste para ver una bahía famosa y un faro blanco.

I feel like us stopping in the west to see a famous bay and a white lighthouse.

Breakdown of Yo tengo ganas de que paremos en el oeste para ver una bahía famosa y un faro blanco.

• yo: I
• un: a
• una: a
• en: in

Questions & Answers about Yo tengo ganas de que paremos en el oeste para ver una bahía famosa y un faro blanco.

Why is yo included at the beginning? Is it necessary?

Usually, no. In Spanish, the verb already shows the subject, so tengo already means I have / I feel.
So Tengo ganas de que paremos... would be completely natural.

Yo is often added only for emphasis, contrast, or clarity. For example, it can suggest something like:

• As for me, I feel like...
• I personally want us to...

So here, yo is optional, not required.

What does tener ganas de mean exactly?

Tener ganas de is a very common expression meaning:

• to feel like
• to want to
• to be in the mood to
• sometimes to really fancy doing something

It is often more about desire or inclination than plain want.

Examples:

• Tengo ganas de comer. = I feel like eating.
• Tengo ganas de viajar. = I feel like travelling.

In your sentence, tengo ganas de que paremos means the speaker has the desire for us to stop.

Why is it de que paremos instead of just parar?