Original: Forest School sessions run consecutively over a number of weeks in all weathers (except very high winds), at a site close to the school.
Simplified: Forest School sessions run only over a number of weeks in all weathers (except very heavy winds), at a site close to the school.
Simplified: Forest School sessions run consecutively over a number of weeks in all weathers (except very high winds), at a site close to the school.
Simplified: Forest School sessions run continuously over a number of weeks in all weathers (except very high winds), at a site close to the school.