Flying to areas around island, like many marine rescues? (3-2-3)

'flying' is the definition.
I don't know anything about this answer so I cannot tell whether this works.

'to areas around island like many marine rescues?' is the wordplay.
I cannot quite understand how this works, but
'to' is found in the answer.
'island' could be 'i' (geographical abbreviation) and 'i' is present in the answer.
an anagram of 'areas' is 'arsea' which is present in the remaining letters.
No letters remain.
This explanation may well be incorrect...

Can you help me to learn more?