five-month-old elijah 's parents have made him a bucket list .
mum jessica and dad andrew want him to see the world .
little elijah suffers the fatal genetic disease type 1 spinal muscular atrophy .
he was born strong but he is now ` very floppy ' and getting weaker .
the list includes a trip to queensland , a ferry ride and watching the sunset .
` the hardest thing is seeing other happy families '