Habs Girls don't play hockey - it's lacrosse. Very inclusive indeed in that & netball - as many as 5 teams are fielded in inter-school matches in the younger year groups. As for standard, occasionally a club player crops up, but really the standard is never so high as to scare off girls who see themselves as average players. Commitment to practice sessions is a key component in team selection. Tennis is of a very high standard at the moment, as there are a number of excellent players, all of whom compete to a high club level and beyond. Still plenty of opportunities for more 'normal' standard players though. I think they're running a tennis camp in Spain again this Easter too (open to all abilities). Athletics is open to all but team selection is more narrow (but that's down to how district meets are structured more than anything). Swimming well represented too. In short - there's something for everyone - and girls are warmly encouraged to join in at least one activity. It certainly isn't a place where only budding Olympians are welcomed!
Hope that helps!