Hi Puffer..although I have just joined the forum (my first post) ..Im an old hand at boating in the Argyle area in small boats.
I hope you enjoy your visit and you are in a great area to enjoy your Honwave.
I dont know your experience of the sea but would strongly recommed exploring Loch Etive..its one of the best sea lochs in the area. Launch your boat from the beach at Taynuilt beside Kelly's Pier..plenty free parking on the shore..then head through the Bonawe narrows and go to the top eastern end of the loch. The scenery is superb and if you like fishing..its great for all kinds of fish..but bring a long line as it is 400ft deep in places. The loch is quite sheltered but there can be strong squalls of wind coming off the hills causing rough water very quickly.
Warning..keep well clear of Connal Bridge and the Falls of Laura..unless you like very strong tidal flows with white water
Loch Etive was flat calm two saturdays ago when I took this photo
If Im heading for the open sea, I often launch at Ganavan Sands..just to the north of Oban. There is a free slipway there and a huge car park which costs £2 to park for the day.
If the wind is fair..you can easily circumnavigate the Island of Kerrera which is a good adventure. No problems with strong tides there although it can get a bit choppy rounding the south western corner if wind is against tide. Plenty mackerel getting caught off there too.
If you have a VHF you will hear the CalMac ferries leaving Oban pier on channel 16. They warn boats that they intend leaving so you can scarper out their way. They can leave a big wash.
To give you and idea of what is possible in your inflatable..if the wind is calm ...
Last Saturday I launched at Ganavan beach ..went round Kerrera island.. into Loch Feochan.. down to Easdale and round the island .. round Inch Island.. back up to Ganavan bay via the west of Kerrera..then because it was such a nice night.. I then went round the Island of Lismore...all in my 4.3 meter inflatable with 25hp engine. Think it was around a 50 mile trip. Boat was full of mackerel for dinner too.
Im usually out on the water somewhere on weekends ..but its very much weather dependant as I dont like cold wet water
If you want more info from me ..then just ask