Other datasets provided with oce: 
adp,
adv,
amsr,
argo,
cm,
coastlineWorld,
ctd,
ctdRaw,
echosounder,
landsat,
lisst,
lobo,
met,
ocecolors,
sealevel,
sealevelTuktoyaktuk,
section,
topoWorld,
wind,
xbt
Other things related to rsk data: 
[[,rsk-method,
[[<-,rsk-method,
as.rsk(),
ctdFindProfilesRBR(),
plot,rsk-method,
read.rsk(),
rsk-class,
rskPatm(),
rskToc(),
subset,rsk-method,
summary,rsk-method