thanks for all the replies - hope I've not missed a reply
Wannabe & 9dragons- he doesn't have sn. Pool safety he knows to be careful but at 8yrs he'll jump in with no regard for anything, he wont put sun cream on....The pool is a big one & not fenced but even if it was he'd just open the gate
Laura - we can't ask for sil to pay for any car hire & she's not offered.
SofiaA - not jealous of my sil in a way I feel sad that she off loads her ds at every opportunity sher gets. Sil ds will do as he wants regarding the pool & it is only because dh & I are responsible that we will monitor him - me by the side of a pool with a crawling baby & 2 yr old. My 5 yr, 7 & 10yr old I will trust to play in the houuse
or patio. Or dh instead of relaxing (he often works 12-14 hrs a day) or spending time with his own kids will be by the side of the pool.
2point4 - they will all play together & this is nice - mainly for him as he will only see our kids & my other sil kids during the hols.
Yomell - sil should arrange some activities for him but hasn't. fil would have to take him on the days we weren't there & he has his activities & work. mil isn't able to look after kids - it is a break for my fil that we're there 10 days & other sil is there a similiar time. mil does swim but can't be responsible for anyone in the pool.
jammi - do see your point of view - it's just that I get to do loads of extra work on holiday. sil will be enjoying a full social life without her ds to look after. If mil could look after him then it would be fine but she can't. She can play cards, draw & read with kids but when it comes to responsibility for kids she isn't mentally/physically able. When mil comes to stay with us to give fil a break it is like having another child - if the doorbell goes she lets anyone in, she wonders off. fil will be busy and sil knows this
cheeset - wish we could hire a bigger car but we can't. If we took him to the beach though he'd just go off on his own & we'd be constantly running after him. sil is me me me She never asks me anything about myself - just not interested.
Ineedacleaner - you've explained it better than I did!
love2sleep - she's done this before - wait until she knows we're staying & then left her ds. Even going back early & then returning two weeks later to pick him up (a long story here & this is why we check her hol dates carefully only this time she's outwit us)
clam - spoke to dh today & he said well it's just sil & how she is!!! He should be on the phone sorting this out with her.