In 3 sentences: The postcard summarizes a visit the writer took last Saturday to Edinburgh Castle with friends, where they climbed to the top of the rock, spent the morning taking in views of the city from the gardens and a documentary on Mary Queen of Scots, and had an enjoyable time overall despite not taking photos.

1. WRITING A POSTCARD:
EDINBURGH CASTLE

2. INFORMATION (I)
● TO: Aunt Luisa
● WHEN?: Last Saturday
● WHERE?: Edinburgh
● WHO with?: My friends
● WHY? To see Edinburgh Castle

3. INFORMATION (II)
● WHAT DID YOU DO?
– Walk up to the top of the rock
– Stay all the morning
– Have a sandwich in the castle gardens
– Look at the views of the city
– Watch a documentary on Mary, Queen of Scots
– Visit the castle museum
– Take photos
– Have a great time

4. A POSTCARD
Dear Aunt Luisa,
I hope you're well. Last Saturday I went to Edinburgh with my
friends because we wanted to see the castle.
We walked up to the top of the rock. We looked at the views of the
city. We stayed all the morning and we had a sandwich in the castle
gardens. We watched a documentary on Mary, Queen of Scots and
we visited the castle museum. We didn't take photos, but we had a
great time.
Did you have a good weekend? I hope so.
Lots of love,
_________