Hi there,
My name's Callum Hunter, and I live in Auckland, New Zealand, but originally am from a small beachside town called Tauranga - so completely understand the vibe you're after, having grown up by the beach in a laid-back coastal town.
Your product sounds fantastic, it's the sort of thing I find really interesting and worth investing time in, so you can be assured I'll be writing with dedication to the task.
In terms of writing ability, I've won numerous awards for my written work during school and university - and was invited to, and did, attend an expository writing course at Stanford University. I have an excellent command of the English language, and can communicate in diverse styles - whether you want something more conversational, formal, or somewhere in between, I'm adept and willing to write whatever it is you're after.
Feel free to contact me with any questions - I'm really flexible on price and able to get work to you immediately.
Regards,
Callum