I'd like to hear anyone's personal experience on day-trip diving from Labuanbajo to the Komodo area, particularly south Rinca Island and the Gili Lawas. I know that there are dive ops in Labuanbajo that advertise going there (ReefSeekers, for one), but wonder how long and difficult the trips are. I also am fairly certain that an ideal scenario would be a liveaboard, but that isn't an option for me right now.
I've had 3 holidays where I did daytrip diving from Labuanbajo. The first time was with Bajo Dive, and I had an excellent time with them. We'd set off between 7 and 8 am, and with the boat they had at the time it was about 2 hours to the central part of the KNP (Bato Balong, Tatawa Kecil and Besar, etc). 4 hour trip to Manta Alley (South Komodo), 3 hours to North Komodo (Gili Lawa Laut). 3 hours to Pillarstien / Three Sisters.
The second time I visited I was going to go with Bajo Dive again, but they were a bit low on customers at the time, so could not guarantee going out to the dive sites for just one diver... So I went with Reefseekers, and they were also very good. They also had a bigger, faster dive boat, so only 1.5 hours to Bato Balong and The Airstrip. Trips to the north of Komodo were regularly done (Gili Lawa Laut), to divesites like Crystal Rock, Full Moon, The Cauldron, Lighthouse, etc. These took 2.5 to 3 hours or so.
All the trips I've done (I've visited around Easter each time) the sea has been flat, with no big waves or swell, possibly because of all the surrounding islands inhibits wave buildup. Some interesting upwellings and currents and stuff though, and beautiful scenery and islands, and occasional pods of dolphins. You'd just chat with other divers, have some tea and coffee and biscuits, and chill. On the Reefseeker boats they'd do these half hour or so talks on different marine critters - nudibranchs, sharks, corals, etc, very informative.
The only time I really saw big sea swell was when we went to the South dive sites - Manta Alley and Cannibal Rock, where we'd be exposed for a while to the open southern ocean, then there was a bit of up and down on the boat.
After the first dive you'd have lunch and a surface interval, the boat would move to the next divesite, you'd do the second dive, then make the trip back to Labuanbajo...