Beach Buddies and River Buddies have cancelled their events this weekend.
The charity says due to unforeseen circumstances, events will not be able to go ahead.
They'll be back in action next weekend with chances to volunteer on both Saturday and Sunday December 17 and 18.
Fuel firm says "fingers crossed" for calmer energy costs
Ring doorbells will need data protection registration - but shouldn't cost you money
Hospice UK head calls Island cuts "cack-handed" ministerial muddle
Bus drivers voting on "final offer" from government
Vampire show featuring Manx ferry cancelled
Did chief minister's message spark fuel panic-buying?
Joe Locke lands purr-fect new role!
Steam Packet fuel surcharge isn't about profit, says chief minister