Congregations around the country are requesting extra volunteers to help with the explosion of events being organised for Shabbat UK.
According to organiser Rabbi Daniel Rowe, 300 additional madrichim have been asked for.
"Communities need the extra support. The overall number of madrichim, including people already in the communities, will be around 1,000," he said.
The national celebration of Shabbat was initiated by Chief Rabbi Ephraim Mirvis, with the inaugural event last year attracting more than 100,000 people.