I accepted avazula answer because this was mostly what I did, but I wanted to give a little more details.
I went to my grandparents' this weekend, and when they ask me at what time they should pick me up from the train station, I just answered:
I'll be walking home.
I made it sounds like this was a fact and not me asking if they were ok with that. I ...
Write a letter and send it via good old fashioned Snail Mail.
I have experienced a similar situation in which my aunt passed and the funeral was in the Midwest and I lived in New England (United States). I wrote a letter (not typed, emailed, etc- but actually hand written with a pen) to each closely-related family.
This should be ideal because