We did locks 37-41 which are all in a 4 mile stretch, all these locks lower you when heading west to Lake Simcoe. We crossed lake Simcoe to get to Port of Orillia Marina (705) 326-6314, this is a nice spot to stop and provision and get a nice dinner out on the town. The Italian place called “Cosmo’s” was the best Italian ive had all trip and it was amazing! If you pay for two nights here the third is free. We are staying two because the weather is rainy, this area really needs rain its been dry and there is a watering ban.