The first time Oli visited his grandparents in Kristianstad alone, April 18-22, 2013

Dad took a train to Stockholm where we met him and waited
for the train to take him and Oliver to Kristianstad. 

...and dad took Oli back aswell!! 

Oli was a wee bit tired from his travels and fell asleep on the
floor while playing with his train and talking about how fun it
was to go by train..