English SIBs (Significant Isles of Britain and Ireland) - The SIBs are defined as "naturally occurring land which at MHWS is completely surrounded by water with either an area of at least 30 hectares within the MHWS contour line or an 'easily accessed' summit with prominence of at least 30 metres above MSL, or both, all man-made links and structures being discounted". The definition of 'easily accessed' summits are those that can be comfortably ascended by walking, involving nothing more challenging than easy grade 1 scrambling. They were researched by Alan Holmes.
Initially confined to Britain, in August 2018 the list was extended to include Ireland, Isle of Man and the Channel Isles.
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SIBs (Significant Isles of Britain and Ireland) List & GPS Waypoints:
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Sort this list by: Name | Height | Popularity | Prominence | Significance
- '0014.-' SO824183 Alney Island (14m, p6)
- '0053.-' SU502965 Andersey Island (53m, p2)
- '0021.-' TM032142 Barrow Hill (Mersea Island) (21m, p21)
- '0017.-' SD198684 Barrow Island (17m, p11)
- '0025.-' SD173690 Beacon Brow (Walney) (25m, p25)
- '0144.p' SS132442 Beacon Hill (Lundy) (144m, p144)
- '0048.-' SX646438 Burgh Island (48m, p48)
- '0005.-' TQ865724 Burntwick Island (5m, p5.3)
- '0016.-' TQ819838 Canvey Island (16m, p16)
- '0053.-' SW754594 Carter’s Rocks North (53m, p53)
- '0059.-' SW754594 Carter’s Rocks South (59m, p58.9)
- '0048.-' SV941161 Chapel Down (St Martin’s) (48m, p48)
- '0003.-' TM098124 Colne Bar (3m, p3)
- '0037.-' SW633441 Crane Island (37m, p37.2)
- '0003.-' TR025935 Foulness Island (3m, p1)
- '0031.-' SW576436 Godrevy Island (31m, p31.2)
- '0034.-' SV945145 Great Ganilly (34m, p34)
- '0033.-' SV909165 Great Hill (Tean) (33m, p33)
- '0059.-' SX500474 Great Mew Stone (59m, p59)
- '0030.-' SW878789* Gulland Rock (30m, p30)
- '0032.-' SV866151 Gweal (32m, p32)
- '0046.-' SU136296* Harnham Water Meadows (46m, p2)
- '0002.-' TQ979882 Havengore Island (2m, p2.3)
- '0002.-' TM410469 Havergate Island (2m, p2)
- '0004.-' TM241243* Hedge-end Island (4m, p4)
- '0051.-' SV912120 Higher Newford (51m, p51)
- '0029.-' SV883083 Higher Town Hill (St Agnes) (29m, p27.8)
- '0012.-' TQ784702 Hoo Island (12m, p12)
- '0049.-' SK255235 Horninglow island (49m, p5)
- '0041.-' SU641045 Horsea Island (41m, p36)
- '0007.-' TM233246* Horsey Island (7m, p7)
- '0043.-' SV882161 King Charles’s Castle (Tresco) (43m, p43)
- '0034.-' SV888086 Kittern Hill (Gugh) (34m, p34)
- '0027.-' SZ012877 Lincoln Cliff Head (Brownsea Island) (27m, p27)
- '0023.-' NU136417 Lindisfarne (23m, p23)
- '0040.-' SW687129 Lion Rock (40m, p38.2)
- '0039.-' SU786749 Loddon Island (39m, p3)
- '0004.-' TF927461 Lodge Marsh (4m, p4)
- '0047.-' SX256514 Looe Island (47m, p47)
- '0037.-' SX089916 Meachard (37m, p36.7)
- '0039.-' SV893174 Men-a-vaur (39m, p38.7)
- '0037.-' SX909493 Mew Stone (37m, p37.3)
- '0004.-' TG019448 Morston Salt Marsh (4m, p2)
- '0033.-' SW659175 Mullion Island (33m, p32.6)
- '0002.-' TQ982896 New England Island (2m, p1)
- '0015.-' SK786538 Newark Island (15m, p5)
- '0039.-' SW914811 Newland (39m, p39)
- '0008.-' TL874059 Northey Island (8m, p8)
- '0034.-' SX956629 Ore Stone (34m, p34)
- '0007.-' TL916059* Osea Island (7m, p7)
- '0032.-' SW824631 Porth Island (32m, p31.8)
- '0008.-' SU647019* Portsea Island (8m, p8)
- '0004.-' TQ958896 Potton Island (4m, p4)
- '0003.-' TF828454 Ramsey Salt Marsh (3m, p3)
- '0032.-' SS146437 Rat Island (32m, p30.4)
- '0005.-' TM004146 Ray Island (5m, p5)
- '0005.-' SE960219 Read’s Island (5m, p5)
- '0044.-' SV902176 Round Island (44m, p44)
- '0014.-' SY988874* Round Island (14m, p14)
- '0004.-' TQ962889 Rushley Island (4m, p4)
- '0021.-' TF808466 Scolt Head Island (21m, p20.7)
- '0036.-' SV873162 Shipman Head (36m, p35)
- '0013.-' SZ688997 Sinah Common (Hayling Island) (13m, p13)
- '0042.-' SV878123 South Hill (42m, p42)
- '0014.-' TA397107 Spurn Island (14m, p11)
- '0242.P' SZ568785 St Boniface Down (242m, p242)
- '0044.-' SV900169 St Helen’s (44m, p44)
- '0003.-' TQ771704* St Mary’s Island (3m, p3)
- '0061.-' SW514298* St Michael’s Mount (61m, p61)
- '0079.-' ST229607 Steep Holm (79m, p79.1)
- '0005.-' TF959446 Stiffkey Meals (5m, p3)
- '0043.-' SX943628 Thatcher Rock (43m, p43)
- '0033.-' SW340311* The Brisons (33m, p33)
- '0050.-' SW938815 The Mouls (50m, p50)
- '0076.-' TQ970722 The Mount (76m, p75.7)
- '0006.-' SU765019* Thorney Island (6m, p6)
- '0007.-' TQ823850 Two Tree Island (7m, p7)
- '0004.-' TQ942948 Wallasea Island (4m, p1)
- '0035.-' SU782798 Wargrave Island (35m, p3)
- '0004.-' TF949446* Warham Salt Marsh-East (4m, p2)
- '0004.-' TF948452 Warham Salt Marsh-West (4m, p4)
- '0043.-' SV880152 Watch Hill (43m, p43)
- '0011.-' SU636025 Whale Island (11m, p11)
- '0031.-' SV922176 White Island (31m, p31)
- '0005.-' SE873245 Whitton Island (5m, p5)
- '0022.-' SU940774 Windsor Racecourse Island (22m, p2)
- '0034.-' SW832638 Zacry’s Island North (34m, p33)
- '0033.-' SW831637 Zacry’s Island South (33m, p32.8)
Total = 88 SIBs (Significant Isles of Britain and Ireland) in England