ATJ
Contributor
Actually, I have found that to some extent the exact opposite happens.In a lot of ways, I am jealous of new divers. Chances are they are going to see or do something on their next dive that they have never seen before
After a bunch of dives in the same place, you pretty much know you are not going to see something much different than the last 20 dives. Part of you hopes something "unusual" happens, but you also hope the unusual isn't some weird incident or accident. Sorta like... I hope I see a really unusual fish this dive; God I hope it isn't a hungry great white.
I have a couple of sites that I dive regularly: every weekend for the last 10 or so years. I'm still seeing new species or new sightings of species. It doesn't happen every dive but it does happen a multiple times each year. I even coauthored a paper describing a new species of pipefish in waters right off Sydney!
Just this year:
* I saw my first Mother-of-Pearl Pipefish
* I saw my first juvenile Red Wide-bodied Pipefish (the pipefish I codescribed)
* I saw full courtship in a pair of Pot-bellied Seahorses
* I saw my first eagle ray in Sydney