The below was the situation in 2013. I haven’t used the hides since summer 2020 and have little feedback but the Seaton Road Hide was demolished on 7/1/22.
“The hide leased by Hull Valley Wildlife group from the Wassand Estate is back in use from 4th April. The hide at Hornsea Mere accessed from Seaton Road will be an add-on to membership of Wassand Hide and Wildlife Group Society. This costs £25 [£35 for married couples] with addition of Seaton Road Hide another £10. There appears to be no option for Seaton Hide alone. As before there will be restrictions on access but no details at present. When we leased the hide, because of limited parking, only 2 cars were allowed. Unlike the Wassand Hide there will be no day tickets. Permits and day tickets from East Lodge, Seaton, Hornsea HU11 5RJ. This is the house at the top of the drive to Wassand Hall. Also available on 01964 537474.”