St Patrick’s Catholic Church is about 700m from Sutherland Railway Station along Flora St, which is mostly flat.
Club Kirrawee is a similar distance from Kirrawee Railway Station, along Oak Rd. It would be a 20 minute walk for a blithe young sport like John and 40 knackering minutes for me! There are plenty of cabs and ubers in Sutherland.
Kirrawee is about an hour’s train trip from Central, so some of you might prefer to stay locally.
John will have family visiting from the UK staying at his place, so here are some other suggestions!

Accommodation Ideas
Quality (exxy) hotel in Cronulla, about 20 mins away
Rydges Cronulla
https://www.rydges.com/accommodation/sydney-nsw/cronulla-beachside/
Budget 3 Star Hotel, looks perfectly respectable, right at the amazing megamall, and not far from Miranda station
Metro Miranda
Pub-style rooms (some with ensuites, some without!) and a friendly team right in Sutho next to the station
Boyle’s Hotel
9521 2315