Brown trout waiting in the lakes for a late run up the rivers got exactly what they wanted, with heavy rain, snow, sleet and sub-zero temperatures creating perfect spawning conditions.

If you're prepared to brave the elements, the Eucumbene and Thredbo rivers will definitely dish up some big browns over the final days of the season.

Spinning with 5-10cm shallow diving minnows, or fly casting with nymphs, will be the gun techniques without question.

A lot of fishos simply make a beeline for the flats at Denison, upstream from Lake Eucumbene, but there are other locations that provide access to spawn-run fish.

The Thredbo River at Creel Bay, the Murrumbidgee River at Tantangara and the many little creeks that criss-cross the high country above Adaminaby are all worth an explore at this time of the year.

Over the closing weekend, the popular spots can resemble Pitt Street at peak hour - the more off the beaten track you go, the thinner the crowds and the more enjoyable the fishing.

Just be mindful that there's likely to be snow and ice on the roads this weekend, so take care behind the wheel and remember your vehicle's limitations.

Rivers close at midnight on Monday.

The coast looks enticing over coming days, with mostly sunny skies and friendly temperatures forecast.

Bream, flathead and trevally are sitting in the deep holes in many estuaries and can be fooled with a bait, vibe or soft plastic.

Salmon and tailor are carving up schools of bait around the estuary mouths, mainly on the top of the tide.

Rock fishing is improving for drummer, bream, blackfish and groper.

Keep your eyes on the swell, though, and don't take any unnecessary risks.