Welcome to the site yuffie. Mate, it ain't that easy to catch 'em with a boat nowadays, let alone without one.
My last trip to the pin last weekend produced not one oversize buck in haunts where we usualy get 'em. Plenty of big jennies and small bucks but a complete dissapointment compared to previous catches considering that we had given these spots a complete rest for 12 months. They are spots that no-one else (to our knowledge know of). Luckily, we have other spots that we have also "rested" for 18 months so hopefully we'll fare better next time out.
Most of these spots are out of water 20 hrs a day and we have even seen muddies enter the pots when they were high and dry. We enter the creeks initially in a 10ft stessl and the most productive spots are accessed by walking into the mangroves to small lagoons that only flood at high. Not the "mainstream" method of catching 'em but opf use nowadays as most spots that were once productive are either fished out or subject to pot thieves.
If you can use your UBD in conjunction with a Beacon to beacon, you may be able to suss some spots that are accessible on foot whilst also spending time in the vicinity chucking a line.
After a big wet, the muddies push out to find salt and some of my biggest bucks have been caught from sandgate pier and hornibrook bridge, whilst I was fishing shore based without a boat.
Good luck
kev
If things get better with age, I must be approaching magnificent!