We have been building our property up with enhancements like our inground lakeside hot tub , originally constructed in 1983 using a locally obtained precast concrete 6 foot diameter casting ( from wachusett Precast in Sterling Ma. ) ; The stone walls were first put in place by Guy Mattero Masonry 1982 ; in a circular configuration @ the pinegrove on our lakefront property ; Next yours truly , hand dug the enlarged five foot deep hole ( until I hit ledge ) which provided a solid immovable foundation for the 3 ton casting . The casting was then retrofitted with 6 hydro air jets & related support plumbing . In addition to the jets an air bubbler ring was installed in the seat ( prior to pouring & tiling the seat area ) . Underground utilities were added to access the support equipment which had to be located in close proximity to the tub , the future boathouse would provide the perfect housing ! The support equipment included a Stayrite pump / filter & 175,000 b.t.u. propane heater ! The heat up speed is phenomenal ( 2 hrs ) . Water is maintained @ safety standard of 104 deg. F. In 2015 an underwater step & spa figure 4 safety rail was added . Just prior to our opening of our Bed & breakfast ! Many of our first guests delighted in a hot soak after a long drive and upon repeat booking requested that the tub be ready for them ! We usually open the tub in late March ; however this year we were delayed because of inclement weather ! Please come and avail yourselves of this special luxury feature which is included with the room ! In fact we have made all of our amenities all inclusive , making for a much more pleasureable stay @ Chateau du Lac B & B ! Although not commonly requested we have , on occasion, allowed guests to be clothing optional , provided they are discreet ! We do however realise we are in Puritan Massachusetts , and public nudity is frowned upon ! We invite all to come experience our Micro - Resort / Bed & breakfast ! You will have a great time & a memorable experience !