Are these correct? If not, why? What do they mean?
1. I will do it as soon as I get back from my bike ride to Hawaii.
2. I will do it as soon as I get back from my bike ride from Hawaii.
1. 'He's going to Hawaii from here, and will return; then he will do it.'
2. He is likely in Hawaii when he is saying this sentence, but I cannot understand the logistics. I suggest that you discard this one.