Translation of unzuverlässig

This is almost six hours, a long time for someone who has children and a day job. I recommend that we write eachother shorter emails and in both languages. Spanish and English next to eachother.
We left on time and the route included some nice beach towns along the coast, such as Tulum and Playa del Carmen. Behind me sat two very cute girls who started to talk to me about life in my country.
I was the only one at the beach, as it was too early and all the party people were still sleeping. After that I hired a motorcycle in order to drive around the island. I never drove before that.