Describe where you live

I live in Santander, a town in the north of Spain with a population of about 200,000 people. Santander is one of the richest in towns in Spain, because it has a lot of factories and industry (industries would also be correct).

Santander has several universities and a lot of high schools with a lot of important buildings and even one very beautifull and old cathedral. The building most important is Magdalena Palace. [“more” would typically be used as a comparison -- such as, “The Magdalena Palace is more important than the cathedral.”  However, if you intend to say that the Magdalena Palace is the best, you’d typically write “most.] It is an amazing building near of the sea.

The town has the sea and a lot of beaches; some of them very awesome. The most awesome is Sardinero beach. It has a lot of restaurants, prom (?) and pubs.

I have a sailboat and go sailing [or you could write, “I have a sailboat and sail every . . .”] every week with my girlfriend or friends. We eating and drinking until sunset on the sailboat. When I go sailing I can see every town from the sea. It is awesome.

The weather is wonderful because in summer it is hot, and in winter it is cold, while and in (or: during) spring and autumm the weather is mild. But it rains a lot of all the year.

The food is very good. The meat and the fish is are (while it is correct to say “the meat is good" -- or "the fish is good” when combined you’re saying “they” so you need to use “are” not “is”) very good. There is much seafood and it is very very good but it is very expensive.

To conclude, Santander is a little town, but it has it all; sea, mountain, nature and good food..

Nicely written David.  It sounds like Santander is a great place to live and to visit.