you can bury him in the garden, we have ours there. just follow the advise from 'daily mail'. we leave ours a dog biscuit on his birthday!
Some one gave me this when we had to make our decision, it brought some comfort.
If it should be that I grow weak
and pain should keep me from my sleep,
then you must do, what must be done,
for this last battle can't be won.
You will be sad, I understand,
don't let you grief then stay your hand,
for this day more than all the rest,
your love for me must stand the test.
We've had so many happy years,
what is to come can hold no fears,
you'd not want me to suffer so,
the time has come, please let me go.
Take me to where my needs they'll tend
and please stay with me until the end,
hold me firm and speak to me,
until my eyes no longer see.
I know in time that you will see,
the kindness that you do for me,
although my tail it's last has waved,
from pain and suffering I've been saved.
Please do not grieve it must be you,
who has this painful thing to do,
we've been so close we two these years
don't let your heart hold back its tears.