|Dusk this time if the season is approximately 7:30PM could be earlier as the season progresses toward fall season,dDu|
|June 11 through June 22, 2018 weekdays 3PM to Dusk - Weekends 1PM to Dusk.|
|July 4th is the official City Holiday. Crystal Lake is on a weekend schedule. July 4th, Gath Pool is Closed for Fireworks preparation.|
|Weekend Schedule (applies to pre-season and regular season)|
|1:00 PM - Dusk - Saturday/Sunday/Holiday - Time Posted at the lake daily|
|* (weekend schedule remains the same throughout the summer) daily swim season shortens when it begins to get dark earlier|
|Regular Season Schedule: All Dates and times are tentative and dependant on public school summer dismissal|
|June 25th through Sunday, August 190, 2018 is as follows|
|Swim Lessons 10:00 AM until 4:00 PM Monday–Friday|
|General Swim 9:30 AM until approximately Dusk Posted Daily at the Lake Weekdays|
|Call 617-552-7124 for daily information|
Crystal Lake is Closed at Dusk August 20 for the Season
Safety Breaks are taken daily Mon-Friday - at Noon, 3pm and 5pm.
Safety Breaks are taken Saturday and Sunday at 3pm and 5pm.
|There are many factors that enter into the determination of when dusk is. The Recreation Department's greatest concern is for the safety of the general public. Other considerations that are weighed in the decision are as follows: The amount of natural light available, The clarity of the water, Local weather conditions, The size of the swimming crowd This makes it very difficult to pinpoint a specific time each evening|
|Will be announced at a later date based on water conditions and staff availability|